For the De Anza College spring break kayak trip on Monterey Bay, in March 2016, the first marine mammal we saw after launching, (besides scuba divers) was a seal that swam between our kayaks.
A juvenile otter surfaced and looked at us from a little distance
The otter swam among kayakers but was hard to get a picture of. In this photo the otter is among the left hand group of kayaks in front of the fishing boat. You can also see a standup paddleboarder in the center top of the page and a distant sailboat off and behind him.
For more about these adventures and when the next one will be, go to:
ocean kayak day trip