The vibe at Tomales Bay
Drop some Tomales Bay knowledge on us.
Large groups can only camp at Marshall or Tomales Beach. Both have vault toilets, and Marshall is closer, but Tomales has two picnic tables. Head there unless your want to a) bring your own table, or b) don't care about sand in your food (it's inevitable).
Leave early if you have kayakers with less experience. The wind an be really intense! Marshall beach is nice with bathrooms and a nice 1 mile + hike to the neighboring beach and back. Very beautiful trip we had a blast.
We camped in Tomales during bioluminescence. They were only visible in the dark, when the water was disturbed, so we did a night paddle that was absolutely epic. The wake of our kayaks and paddles were glowing electric green. Highly recommend it.