Port Madison Bay
Bay in Washington · 251 acres · near Bainbridge Island, Suquamish

Port Madison Bay is a 251-acre bay near Bainbridge Island and Suquamish in Washington, with 4 carry-in launches listed here.
Boating rules
- No-discharge zone: WAC 173-228 bans vessel sewage discharges, whether treated or not, in the No Discharge Zone. It became effective May 10, 2018. · all of Port Madison Bay rule
From the boating rules map of Washington Department of Ecology, read October 20, 2026. A map of rules is a guide: the regulation's text and the posted signs govern.
Kayak and canoe launches on Port Madison Bay
- Broom St Road End · Carry-in (canoe and kayak) · near Bainbridge Island
- Gordon Dr Road End · Carry-in (canoe and kayak) · near Bainbridge Island
- Grotle Dr Road End · Carry-in (canoe and kayak) · near Bainbridge Island
- Skogen Lane Road End · Carry-in (canoe and kayak) · near Bainbridge Island
Community
Where people who fish, boat and paddle Port Madison Bay talk about it. Lake associations, clubs and local groups will be added as we find them.