Pillar Point Harbor is a great place to buy fresh ...

Pillar Point Harbor is a great place to buy fresh fish straight from the fishermen. You can also rent kayaks and SUP from a couple locations or launch your boat from their ramp. There are some great local restaurants serving lunch and dinner.
The harbor employees are very friendly and are trying hard to keep this place pretty despite the huge number of visitors. As a matter of fact they partner with a local non profit called Pacifica Beach Coalition and they lead beach cleanups on a monthly basis.