Chester A. Congdon
Also known as: SS Congdon
Best time to dive
June to September; August
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - no
Safety notes
Cold water, entanglement in wreckage/fishing line, risk of accidental descent into deep debris field, remote location (nearest recompression chambers Minneapolis/Milwaukee); federally protected wreck - artifact removal illegal
Permits & fees
NPS entrance fee $7/person/day or $60 Isle Royale season pass (Apr16-Oct31); America the Beautiful passes accepted; divers must register at Rock Harbor, Windigo, or Houghton Visitor Center before and after diving
Permits and operators change - confirm before booking.
Location
Nearest hub: Rock Harbor
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.