Tongass National Forest — riverside, fishing, hiking
Location: PETERSBURG, AK, AK
Price: From $25 per night
Rating: 4.3 out of 5 (6 reviews)
Season: May through October
Castle River Cabin is located on Kupreanof Island on the coastal waters of southeastern Alaska. It offers access to a variety of outdoor recreational opportunities, as well as a secluded place to enjoy its beautiful surroundings. The cabin is accessible only by boat or float plane from Petersburg or Wrangell, and tides impact access.
Cell coverage (FCC estimate): weak signal. Actual signal may vary in remote areas. Best carrier: AT&T.
Amenities: Fire Rings, Picnic Tables, Drinking Water, Fishing, Firewood for Sale
Availability alerts: Set a free cancellation alert at camperwatch.org/campground/castle-river-cabin to be notified when sites open up.
Castle River Cabin offers a secluded coastal experience on Kupreanof Island in southeastern Alaska with access to fishing, hiking, and wildlife viewing. The remote location provides beautiful surroundings and variety of outdoor recreational opportunities.
Insider tips for Castle River Cabin: Book early - this is a federal campground with only 1 site Plan travel around tides: a 16-foot tide is required for direct boat or float plane access; at lower tides expect up to a 2-mile hike Arrange your own transportation from Petersburg (16 miles by float plane or 30 miles by boat) or Wrangell
Skip Castle River Cabin if: You need hookups - no hookups available. You cannot arrange your own boat or float plane transportation. You cannot handle tide-dependent access and potential 2-mile hikes.
Best time to visit Castle River Cabin: May-October — Official operating season per verified data.
Nearby campgrounds: Castle Flats Cabin (PETERSBURG, AK), Breiland Slough Cabin (PETERSBURG, AK), Kah Sheets Lake Cabin (PETERSBURG, AK), Beecher Pass Cabin (PETERSBURG, AK).
Cell signal at Castle River Cabin (PETERSBURG, AK): weak overall signal based on FCC broadband data. Best carrier: AT&T.
Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.
Castle River Cabin is located on Kupreanof Island on the coastal waters of southeastern Alaska. It offers access to a variety of outdoor recreational opportunities, as well as a secluded place to enjoy its beautiful surroundings. The cabin is accessible only by boat or float plane from Petersburg or Wrangell, and tides impact access.
Known issues, each with the workaround. Read before you book.
Book early - this is a federal campground with only 1 site
Plan travel around tides: a 16-foot tide is required for direct boat or float plane access; at lower tides expect up to a 2-mile hike
Arrange your own transportation from Petersburg (16 miles by float plane or 30 miles by boat) or Wrangell
Official operating season per verified data
FCC maps are theoretical — camper reports confirm signal. Best carrier: AT&T.









From Petersburg, it is 16 miles by float plane or 30 miles by boat. A 16-foot tide is required for direct boat or float plane access to the cabin. At lower tides, there is up to a 2-mile hike across the sometimes muddy tide flat to get to the cabin. Another option for access is to boat or fly to the Castle Flats Cabin (a 15-foot tide is required for float plane, or a 13-foot tide for boat access there) and hike the easy 0.5-mile trek to the cabin. The Castle River Cabin can be found on USGS topo
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