🌤 Weather at Grant Island State Marine Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 32–58 °F | 48–65 °F | 35–59 °F | 31–41 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Ketchikan 10N, 7 mi away, elevation 295 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
Undeveloped Uplands and Tidelands on Grant and Joe Islands, North of Ketchikan
Grant Island State Marine Park covers approximately 592 acres of undeveloped uplands and tidelands north of Ketchikan, according to Alaska State Parks. The state’s park boundary data place it at the south end of Grant Island and on small Joe Island just to the south, about 14 miles north of downtown Ketchikan and about 4 miles northeast of Betton Island, straight-line. There is no road access and there are no facilities.
Alaska State Parks lists camping, fishing, hiking, kayaking, boating and wildlife viewing here, and it notes that the park has excellent fishing. No trails, campsites or shelters are listed, so you explore the shore and the tidelands on your own and bring everything you need.
Things to Do
- Fishing: Alaska State Parks calls the fishing here excellent
- Boating and kayaking: around Grant and Joe Islands
- Wildlife viewing: along the undeveloped shore
- Hiking: listed as an activity; no maintained trails are listed
- Camping: possible, with no developed sites or facilities
Park Information
| Feature | Details |
|---|---|
| Location | South end of Grant Island and Joe Island, about 14 miles north of Ketchikan |
| Size | About 592 acres of uplands and tidelands |
| Access | No road access. Boat or kayak |
| Facilities | None (undeveloped) |
| Fees | No fee listed in the Alaska State Parks fee schedule (as of October 2026) |
| Accessibility | Not listed as an ADA facility |
| Managed By | Alaska Division of Parks and Outdoor Recreation |
| Coordinates | 55.5380, -131.7211 |
Getting There
There is no road to the park. You need a boat or a kayak. The nearest place in our guide on the Ketchikan road system is Settlers Cove State Recreation Site, about 2 miles south of the park, straight-line. Check the tides and the weather before you set out, and arrange your return in advance if someone drops you off.
Nearby State Parks
The distances below are straight-line. Settlers Cove State Recreation Site is about 2 miles south, and Betton Island State Marine Park, another undeveloped marine park, about 4 miles southwest. Totem Bight State Park and Refuge Cove State Recreation Site are each about 9 miles south.
Frequently Asked Questions
Where is Grant Island State Marine Park?
At the south end of Grant Island and on Joe Island just to the south, about 14 miles north of downtown Ketchikan and about 4 miles northeast of Betton Island, straight-line.
What can you do at Grant Island State Marine Park?
Alaska State Parks lists camping, fishing, hiking, kayaking, boating and wildlife viewing, and calls the fishing excellent; the park is undeveloped, with no campsites, trails or facilities listed.
How do you get to Grant Island State Marine Park?
By boat or kayak. There is no road access.
Sources: Alaska State Parks, Grant Island State Marine Park; Alaska DNR, ASP Park Boundary (open data); Alaska State Parks fee schedule. Last updated: October 2026.
🐾 Dogs & Pets at Grant Island State Marine Park
- Pets allowed? statewide rule
- Pets are welcome in Alaska State Parks and campgrounds when leashed and accompanied by the owner; unleashed dogs are allowed in the backcountry if under voice control.
- Leash rule statewide rule
- Leash not exceeding 9 feet required in developed facilities (campgrounds, picnic areas, trailheads, swim beaches, boat ramps).
- Beaches & swim areas statewide rule
- No statewide pet ban on beaches; swim beaches count as developed facilities where the 9-foot leash rule applies.
- Statewide exceptions statewide rule
- In the backcountry leashes are not required but pets must remain under voice control; in trapping areas (e.g. Chena River SRA) leashing is strongly advised for dog safety.
Are dogs allowed at Grant Island State Marine Park?
Pets are welcome in Alaska State Parks and campgrounds when leashed and accompanied by the owner; unleashed dogs are allowed in the backcountry if under voice control. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via dnr.alaska.gov. More: Alaska state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Grant Island State Marine Park
From our editorial guides, matched to this park’s activities:
