These are some marinas that I have some information on. I'll add more as I continue to gather information about them.
Here are some marinas that I have some information about. Most are for seasonal boaters, though there are a number of overnite slips for boaters cruising Lake Ontario.
PierPoint offers gas and pumpout and has some overnite slips available.
Arney's Marina offers gas and pumpout facilites plus a public launching ramp.
Oak Park Marine--Located on the south end of Sodus Bay offers gas and pumpout facilities. It has overnite dockage for both sail and powerboats. Cutters restaurant is located at the marina.