[Rob Smith]

These are some of the Charters I have used and would recommend

Kingston,

Proteus Dive http://www.proteusdiving.com/
Pat's Dive http://www.divercity.on.ca/pathome.html

Brockville

Underwhere? Dive (Tom) http://www.diveunderwhere.com/

Picton/Kingston

Duck's Dive http://www.ducksdive.com/