When you go - get a campsite that backs onto the bluff (rim trial) and you can watch the sunset each night from your campsite.

I love the Trinidad area, from the harbor to Moonstone Beach. And the best way to see the area is at Patrick's Point.  You are on the coast, by the beach, so think damp and wind.  the sites (there are several loops) all are a bit different. I like the Abalone Loop because you can get a site on the bluff. You can walk ten steps and watch the sunset each night.

As an added bonus you will hear the seals barking as you go to sleep..

There are great tidepools here.  You need to hike down to them and the tide needs to be right.  There is a native american village to explore, trails to walk and views to take in at every point.

Not sure why, but usually do not have a problem getting a reservation or extending my stay.

Some of the sites have wear - the wood on the tables and food storage lockers shows the effects of the damp air. Just bring a tablecloth and you will be fine. Coin operated showers also show wear but are functional. Usual tabel, fire ring and food sotrage lockers.