Don't let the pretty autumn colors fool you, but we hiked the Mission Trails in early January after several days of rain so that we could see if the cacti were blooming. We just hiked around for 4 hours enjoying the scenery, but not really picking any particular trail. We ended up way out by the northern perimeter and Shepherd's Pond.
This is a really excellent regional park with great hiking trails of all skill/effort levels.
This is a seasonal crossing, so we actually had to wade through the water a bit to get over to the trails. Normally, it isn't quite so wet here.
"It's like the English countryside, except for the cacti."