🌤 Weather at Decision Point State Marine Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 20–53 °F | 44–63 °F | 28–56 °F | 20–35 °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 Wally Noerenberg Hatchery, 11 mi away, elevation 35 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
🏆 Alaska Wilderness — Marine park in Prince William Sound — named by Captain Cook in 1778 when he had to “decide” which passage to explore. Accessible only by boat or kayak.
Visitor Information
| Detail | Information |
|---|---|
| Location | Alaska |
| Access | Check AK State Parks |
About Decision Point
Decision Point State Marine Park in Prince William Sound marks the point where early navigators had to decide which direction to travel through the sound. The park protects a scenic point and beach in one of the most pristine marine environments in North America — still recovering from the 1989 Exxon Valdez oil spill.
Decision Point State Marine Park in Prince William Sound protects a sheltered cove accessible only by boat or floatplane — typical of Alaska’s marine parks, where roadless wilderness is the norm. Prince William Sound encompasses 15,000 square miles of fjords, glaciers, and islands — one of the most spectacular coastal landscapes on Earth. The sound’s tidewater glaciers calve icebergs directly into the sea.
Things to Do
Sea kayaking, beach camping, wildlife viewing (sea otters, harbor seals, bald eagles), fishing for salmon and rockfish, and exploring Prince William Sound’s glacial fjords. Access by boat or kayak from Whittier.
Kayaking in the protected cove, wildlife watching for sea otters, harbor seals, and humpback whales, beachcombing, primitive camping, fishing for halibut and rockfish, and experiencing roadless Alaska wilderness.
Insider Tips
Prince William Sound gateway: Decision Point marks where Passage Canal opens into the wider Sound — a dramatic transition from sheltered water to open ocean. Pro tip: Kayakers should assess weather conditions here before committing to open-water crossings. Sea otter central: Rafts of 50+ sea otters are common — they float on their backs cracking shellfish on rocks balanced on their bellies.
Best Time to Visit
June-August: Calmest seas and longest days. May: Gray whale migration through the Sound. September: Fall colors on surrounding mountains. Winter: Not recommended — extreme conditions.
Frequently Asked Questions
How do I get to Decision Point?
By kayak or boat from Whittier (accessible by car via the Anton Anderson Tunnel — the longest highway tunnel in North America at 2.5 miles). Water taxis from Whittier serve the area.
More parks nearby: Surprise Cove State Marine Park is a short drive away, while Ziegler Cove State Marine Park lies a short drive away.
Camping reservations: Book campsites and cabins for Alaska state parks online at alaskastateparks.reserveamerica.com.
🐾 Dogs & Pets at Decision Point 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 Decision Point 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 Decision Point State Marine Park
From our editorial guides, matched to this park’s activities:
