Petersburg rewards visitors who want something other than a cruise-ship port experience. The town is accessible enough to be comfortable but remote enough to feel genuinely Alaskan. The commercial fishing harbour dominates the waterfront — you can watch the fleet come and go, see boats being worked on, and get a sense of the industry that has sustained this community for over a century.
The Hammer Slough area along the tidal channel is the most photogenic corner of town, with weathered buildings on pilings reflected in the water at high tide. The Sons of Norway Hall is the cultural anchor of the Norwegian community, worth visiting especially during the Little Norway Festival in May. The Clausen Memorial Museum covers Tlingit heritage, the Norwegian founding, and the cannery era in compact and well-curated form.
Outside of town, the main draws are accessible by charter boat: LeConte Glacier calves icebergs into Frederick Sound to the north, and humpback whales feed in the waters between the islands throughout summer. Eagle Roost Park at the north end of town gives close-up views of bald eagles without leaving the pavement. The Raven Trail through the Tongass National Forest offers ridge views and typical Southeast Alaska forest on foot.
The Crystal Lake Salmon Hatchery, a few kilometres out the road, is open to visitors during salmon season and gives a good introduction to how Alaska manages its fisheries.