I too am not aware of any groups.
I live close to the Langdale ferrry terminal and paddle Thornborough Channel.. west of Gambier Island ,launching from Port Mellon.Easy access to water.. One can back car right up to waters edge.
Another of my haunts is Sechelt Inlet, launch from Porpoise Bay, excellent parking.c Paddle up to Piper Point or Nine Mile Point usually and sometimes beyond.
I am not a cold weather paddler!! I generally paddle April to October mid.
I use a Current Designs Solstice GTS. Give me a shout sometime.