How much does camping cost at Castle Flats Cabin?

Camping fees at Castle Flats Cabin are $25/night. Prices may vary by site type (standard, hookup, premium) and season. Book online to see exact pricing for your dates.

Is Castle Flats Cabin first-come first-served or reservation?

Castle Flats Cabin accepts online reservations. We recommend booking in advance, especially during peak season (typically summer weekends). Use campsite alerts to get notified when spots become available.

Can I see photos of campsites at Castle Flats Cabin before I book?

Yes! Castle Flats Cabin has 8 campsite photos on Outdoorithm, contributed by campers who've stayed there. Browse real photos of individual sites to see what to expect before you reserve. You can also add your own photos after your trip to help the next family plan theirs.

What is the best time to visit Castle Flats Cabin?

Castle Flats Cabin is open January 01 to December 31. The best time to visit depends on your preferences—summer offers the warmest weather and most activities, while spring and fall provide fewer crowds and milder temperatures. Check current conditions before your trip.

Are there showers at Castle Flats Cabin?

Castle Flats Cabin does not have shower facilities. Plan accordingly—nearby alternatives may include day-use areas or towns.

How many campsites does Castle Flats Cabin have?

Castle Flats Cabin has 1 campsites. Sites vary in size, privacy, and amenities. Check availability online to find the best site for your needs.

Are dogs allowed at Castle Flats Cabin?

Pets are not allowed at Castle Flats Cabin. This policy helps protect local wildlife and other campers. Consider nearby pet-friendly campgrounds if traveling with animals.

What amenities are available at Castle Flats Cabin?

Castle Flats Cabin offers: Restrooms. See our detailed campground page for the full list of facilities and features.

What activities can I do at Castle Flats Cabin?

Popular activities at Castle Flats Cabin include Hiking, Fishing, Boating, Wildlife Viewing. The surrounding area offers plenty of outdoor recreation opportunities for all skill levels.

Castle Flats Cabin

Q: Can I have a campfire at Castle Flats Cabin?

Fire policies at Castle Flats Cabin: Firewood at the cabin is supplied only for heating the cabin, it is not for outdoor campfires; collect dead and down wood from the forest for your outdoor campfire. Always check current fire restrictions before your trip, as conditions change seasonally.

2 reviews

PO BOX 1328, PETERSBURG, AK, 99833, USA

Top 18% in AKFall

Featured in:Mountain Camping Alaska

Quick Facts

Price

$25/night

Booking

Reservable

Sites

1 campsites

Season

Open from April 29, ...

Cell

Unknown

Pets

Check Policy

Book on Petersburg Ranger District Official Website

Get Directions

Quick Facts

Price

$25/night

Booking

Reservable

Sites

1 campsites

Season

Open from April 29, ...

Cell

Unknown

Pets

Check Policy

Book on Petersburg Ranger District Official Website

Get Directions

Castle Flats Cabin

$25.00 / night

Campsite Fees

CABIN NONELECTRIC: $25.00. Plus Recreation.gov reservation transaction fee ($8 online / $9 phone / $3 in person).

No campsite fee categories listed.

Get Notified When Available

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Provider

907-772-3871

I manage this campground

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Campground Map

PO BOX 1328, PETERSBURG, AK, 99833, USA

Castle Flats Cabin

PO BOX 1328, PETERSBURG, AK, 99833, USA

Nearby places

Petersburg (16 miles by float plane, 30 miles by boat)

Weather at Castle Flats Cabin

Current alerts(12)

All garbage and food must be packed out
Be advised this facility will receive minimal maintenance this year. If this facility has an oil stove please use clean #1 heating oil or kerosene to limit problems with operation. If this facility has a wood stove it is not guaranteed wood will be available.
Don't Move Firewood: Prevent the spread of tree-killing pests by purchasing firewood near your destination and burning it on-site. For more information visit dontmovefirewood.org.
High levels of Paralytic Shellfish Poisoning (PSP) have been recorded in this area

Best Time to Camp at Castle Flats Cabin

Best season: fall. Fall offers the best combination of prime fishing, wildlife viewing, and low crowds — expect cool, crisp weather (roughly 35–50°F) and increasingly stable windows for floatplane or boat access. Late August into September brings peak salmon runs (coho and late sockeye), excellent shore- and river-fishing, and intense wildlife activity as whales, seals, bears, and eagles feed along the fjord and tidal flats. With shorter daylight but far fewer visitors than summer, trails and the cabin feel remote Peak months: September, October, May, June Avoid: January, February, March, April

Best

Fall(Sep-Nov)

4.0 / 5

Top 18% in AK

Notes state fall is best: prime fishing, wildlife viewing, lower crowds and more stable weather.

Planning Tips

Peak Season: January 01 to December 31. Book 2-3 months ahead.
Operating Season: Open from April 29, 2025, to December 31, 2025.

About Castle Flats Cabin

Castle Flats Cabin sits in Tongass National Forest near Petersburg, operated by the Petersburg Ranger District. This remote rental offers vault toilets and access to fishing, boating, hiking, and wildlife viewing in Southeast Alaska's rainforest. Guests reach the cabin by floatplane or boat and appreciate the seclusion, though mosquitoes can be intense and firewood scarce.

Castle Flats Cabin is a hunter-style cabin facility offering basic accommodations for up to five people. It caters to visitors seeking primitive cabin lodging with opportunities for hiking, fishing, and wildlife observation.

Weather and SeasonsBest season: fall. Fall offers the best combination of prime fishing, wildlife viewing, and low crowds — expect cool, crisp weather (roughly 35–50°F) and increasingly stable windows for floatplane or boat access. Late August into September brings peak salmon runs (coho and late sockeye), excellent shore- and river-fishing, and intense wildlife activity as whales, seals, bears, and eagles feed along the fjord and tidal flats. With shorter daylight but far fewer visitors than summer, trails and the cabin feel remote Peak months: September, October, May, June Avoid: January, February, March, April

ElevationPerched at sea level where river meets ocean, Castle Flats offers the rare combination of saltwater proximity and freshwater access without the challenges of altitude. This coastal positioning creates ideal conditions for both marine and riverine adventures, while gentle terrain makes exploration accessible for visitors of all abilities.

Natural Features and SceneryThe cabin sits where old-growth forest meets tidal flats and muskeg. Sitka spruce and western hemlock tower overhead, while the nearby Duncan Canal. Actually a glacially-carved fjord. Brings whales and seals past twice daily with the tides. The Castle River winds through the landscape toward the sea. When the tide retreats, the flats become feeding grounds for moose, black bears, and waterfowl. Sitka black-tailed deer appear at forest edges morning and evening.

Lodging & AccommodationsThe facility consists of a hunter-style cabin equipped with basic amenities for up to five guests, including bunks, wood stove, oil heater, and covered porch.

Programs & ActivitiesNo cultural or educational programs are detailed.

Best Campsites

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Reserving a campsite

Stay Limit

Maximum stay is 7 consecutive nights during peak season. During non-peak season, the stay limit is 10 consecutive nights.

Guests Allowed Per Site

The cabin accommodates up to 5 people.

Groups

Group camping is not supported at this facility.

Tents

Tents are not allowed

RV vehicles

RV vehicles are not allowed

Primitive

Primitive camping is not allowed

Reservable

Reservations are allowed

Reservation PlatformsReservations can be made via Recreation.gov up to 180 days in advance or on the day of arrival.

Site SizeThe cabin is designed to accommodate up to five people. Individual bunks are provided for sleeping arrangements.

PrivacyThe cabin is secluded and situated on southeastern Kupreanof Island, offering privacy amidst old-growth forest and muskeg.

Total Campsites1 campsites

Recommended SitesEnsure tide conditions are favorable before accessing the cabin. Bring all necessary supplies, including drinking water, life jackets, heating oil, and outdoor gear.

Need help booking Castle Flats Cabin?

Reservation tips, booking windows, and free cancellation alerts.

Recreation.gov Guide

Booking tips & windows

When to Book

Find your booking window

Cancellation Alerts

Free alerts for this campground

Amenities available

Castle Flats Cabin offers a hunter-style cabin with various amenities aimed at providing a rugged yet functional camping experience. Designed for seclusion and immersion in southeastern Alaska's natural beauty, the cabin includes four wooden bunks capable of accommodating up to five people, a table, benches, wood stove, oil heater, and a covered porch. Additional tools such as a broom, dustpan, axe, and splitting maul are provided, though their condition may vary. Visitors must bring essential gear, including sleeping bags, pads, cooking stoves, and drinking water, as potable water is not available on-site. The outhouse includes a pit toilet. Firewood is generally provided but cannot be guaranteed.

Firewood available

Lodging and accommodations

Vault toilets

Cabin Lodging

I manage this campground

Things to do at Castle Flats Cabin

Castle Flats Cabin provides abundant outdoor recreational opportunities. Activities include hiking, hunting, fishing, camping, boating, and wildlife viewing, making it a good choice for nature enthusiasts and adventurous visitors.

Fishing4.0/5

Wildlife viewing4.0/5

Whales and seals pass with the tides; moose, deer, black bears, waterfowl noted.

Hiking3.0/5

Castle River Trail: easy 1.0 mi + 0.5 mi extension through forest and muskeg.

Boating3.0/5

Water Sports3.0/5

Fjord/tidal access and small boat on site suggest kayak-possible conditions.

Winter Activities

Signature experiences

Photography4.0/5Whales/seals, fjord, tidal flats and ancient forest provide varied photo opportunities.

Not sure what to pack?Our complete camping packing checklist

Policies & Safety

No Potable WaterThis campground does not have potable water on-site. Bring all the water you need for drinking, cooking, and cleaning.

No Flush ToiletsFlush toilets are not available; the facility has a pit toilet in an outhouse.

No Electric HookupsElectric hookups are not available at this campground. RV campers should arrive with a full battery and plan for off-grid power (generator hours/quiet rules permitting).

No Water HookupsSite-level water hookups are not available. RV campers should fill freshwater tanks before arrival; check the No Potable Water note above if applicable for drinking water.

Fire PolicyFirewood at the cabin is supplied only for heating the cabin, it is not for outdoor campfires; collect dead and down wood from the forest for your outdoor campfire

Trash & RecyclingAll trash and food must be packed out by visitors. There are no trash collection or recycling facilities on-site.

Cell CoverageCell phone service availability is not specified; visitors should prepare for remote conditions without reliable connectivity.

Trip Planning Tools

Set an AlertGet notified when sites open up Check WeatherHistorical weather data Gear for This TripMatched gear recommendations Packing ListCustomizable checklist

Questions & answers

Researching this campground? Ask anything — other campers and our team will weigh in. No visit required.

Tips from campers

Short heads-ups about the road in, gear quirks, timing, and more. You don't have to have been here to share what you know.

Reviews

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From Booking Sources

0.0

2 reviews

Limited Reviews

Castle Flats Cabin has limited reviews, placing it in the bottom % of campgrounds based on reviews

User reviews are mixed, with positive highlights about the secluded environment and general enjoyment of the facility, contrasted by complaints regarding mosquitos, gnats, and insufficient firewood.

Review Summaries

Based on 2 reviews

What Campers Love

Reviewers appreciated the cabin's location and seclusion, as well as the opportunities for fishing and hunting.

Based on 2 reviews

Common Concerns

Negative feedback includes remarks about the abundance of mosquitos and gnats, long distances from fishing areas, and unreliable firewood supply.

Based on 2 reviews

Site-Specific Reviews

Site-specific feedback includes remarks about site P10 and the surrounding area, noting both challenges and advantages, but no exhaustive details are provided.

Based on 2 reviews

Pro Tips & Recommendations

Visitors are advised to bring ample bug repellent and consider the need for additional firewood. Checking tide tables is crucial for accessibility.

Based on 2 reviews

Seasonal Insights

Campers often highlight the importance of timing the stay with weather conditions and seasonal activities, such as fishing and wildlife migrations.

Based on 2 reviews

Camper Quotes

"Long way from the river and fishing, mosquitos and gnats were bad, very little firewood." - Dan H. "Great!" - Alfred W.

Based on 2 reviews

Outdoorithm Community

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Castle Flats Cabin

$25.00 / night

Campsite Fees

CABIN NONELECTRIC: $25.00. Plus Recreation.gov reservation transaction fee ($8 online / $9 phone / $3 in person).

No campsite fee categories listed.

Get Notified When Available

We'll monitor this campground and alert you the moment sites become available.

Free to start · paid plans add 2-min scans

263,000+ sites monitored · Email alerts to start; SMS and in-app with an account

Learn more about alerts →

Share this campground

Recreation Dot Gov

Provider

907-772-3871

Go if

You want floatplane-access solitude in Southeast Alaska and don't mind packing in firewood and bug spray.

Skip if

You need road access, abundant firewood, or want to avoid heavy mosquito pressure.

Nearby Campgrounds

PO BOX 1328, PETERSBURG, AK 99833, USA

Castle River Cabin sits in the Tongass National Forest near Petersburg, accessible only by boat or floatplane. Managed by the Petersburg Ranger District, this remote single-cabin rental offers vault toilets and a springtime window into Southeast Alaska's tidal ecosystems. Visitors come for wildlife viewing along productive waterways, fishing the Castle River drainage, and hiking the surrounding forest.

Castle Flats Cabin

Quick Facts

Quick Facts

Get Notified When Available

Ask Camp Sage about Castle Flats Cabin

Campground Map

Weather at Castle Flats Cabin

Current alerts(12)

Best Time to Camp at Castle Flats Cabin

Planning Tips

About Castle Flats Cabin

Best Campsites

Reserving a campsite

Need help booking Castle Flats Cabin?

Amenities available

Things to do at Castle Flats Cabin

Policies & Safety

Trip Planning Tools

Reviews

What Campers Love

Common Concerns

Site-Specific Reviews

Get Notified When Available

Go if

Skip if

Explore related camping guides

Ask Camp Sage about Castle Flats Cabin

Current alerts(12)

Best Time to Camp at Castle Flats Cabin

Planning Tips

Best Campsites

Reserving a campsite

Need help booking Castle Flats Cabin?

Amenities available

Things to do at Castle Flats Cabin

Policies & Safety

Trip Planning Tools

Reviews

What Campers Love

Common Concerns

Site-Specific Reviews