Sequoia is on the way to Santa Cruz if you are coming from East Bay Area.
Sequoia have 5-6 spacious woodsball fields. There is plenty of room to move around but running is not recommended as the fields are hilly. You may trip and fall going up or down the field. Game variations are capture the flag, center flag, elimination or infinite respawn with a time cap. Respawn is fun because you can go back in after walking back to starting point and play again. However you do go through your paint supply faster.
Each field is unique and every time you replay the field you find different ways to get to your opponents.
The only bad things about the field is the drive can be windy since there is only have a single lane road and the field does not have HPA yet.