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A forested rocky island in Glacier Bay, with sea lions clustered on pale rocks and snow-capped mountains across the water.

Viewpoint

South Marble Island

Seabird colony and Steller sea lion haul-out near Sitakaday Narrows; view only from the water.

Reference 166

Glacier Bay National Park and Preserve · NPS

Season months
May–Aug
View of
Seabird colonies · Steller sea lions
Access modes
Boat
Road accessible
No
Boat

A small island northeast of Sitakaday Narrows where seabirds such as puffins, murres, kittiwakes and murrelets nest and bachelor Steller sea lions haul out. It is closed to camping and foot traffic year-round. All vessels, including kayaks, must stay more than 50 yards from the southern half of the island and more than 100 yards from nesting colonies. Bring binoculars.

Location

In pictures

Wildlife viewing · Birding · Boating

Sources

Last updated 2026-11-13

Nearby within 25 miles