Esther Passage
Surprise Cove
Well-protected deep-water anchorage in Esther Passage. Excellent holding in 30–45 ft. Sea otters, Steller sea lions, frequent orca sightings.
View Anchorage →
The Modern Cruising Intelligence Platform for Alaska.
Live conditions · Interactive maps · Anchorage intelligence · Route planning.
From morning tide checks to expedition planning — the operating system for Prince William Sound cruising.
10-layer MapLibre map covering all anchorages, fuel docks, hazards, glaciers, and marine parks. Clickable points, cluster rendering, geolocation.
Launch Map →Deep-dive profiles for every major anchorage: approach notes, protection ratings, anchoring quality, wildlife, nearby cabins, and drone footage.
Browse Anchorages →Curated route guides with distance, fuel estimates, exposure ratings, weather windows, bailout coves, and emergency pullouts.
Plan a Route →Real-time NOAA marine forecasts, tide curves, wave height, visibility, water temp, wind, and active marine warnings. Updated continuously.
Check Conditions →Tunnel schedule, harbor conditions, launch ramp status, fuel availability, ferry times, parking, and marina contacts — all in one place.
Whittier Hub →Build, print, and share a complete float plan with vessel info, route, fuel estimate, crew manifest, and emergency contacts. PDF export included.
Create Float Plan →Cold water survival, katabatic wind awareness, fog navigation, emergency communications, and remote rescue timelines for Alaska waters.
Safety Resources →Install to your device. Maps, anchorages, route notes, and emergency info all available in PWS dead zones — no signal required.
Critical for AlaskaWell-protected deep-water anchorage in Esther Passage. Excellent holding in 30–45 ft. Sea otters, Steller sea lions, frequent orca sightings.
View Anchorage →Staging anchorage for Columbia Glacier runs. Good mud bottom, 20–35 ft. Best protected from SE. Glacier calving audible at night.
View Anchorage →Calm, well-protected passage with multiple anchoring opportunities. Excellent wildlife corridor. Humpback whales common in summer months.
View Anchorage →Dramatic tidewater glacier bay with 4 active glaciers. Anchorage near head exposed to katabatic winds. Best visited in calm conditions only.
View Anchorage →Whittier to the Columbia Glacier face. One of Alaska's most dramatic day trips.
Classic protected-water cruise through Esther and Culross passages. Multiple anchorage stops.
Deep into College Fjord's glacier-ringed amphitheater. 16 named glaciers visible from anchorage.
The only road into Whittier is through the 2.5-mile Anton Anderson Tunnel — the longest combined rail/road tunnel in North America. It alternates direction every 30 minutes. Missing the window means a 30-minute wait.
View Full Tunnel Schedule →Prince William Sound water temperatures hover near 46°F year-round. Survival time without immersion gear: 30 minutes. Know your risks before you leave the dock.