Wildflower Triathlon Festival
Credit: Wikipedia

The Wildflower Triathlon is considered the Woodstock of tris – a festival that is equal parts live music and bonfires and swim-bike-run. For this freewheeling event, athletes flock to Lake San Antonio with tents, camper shells, and RVs, and ease pre-race jitters with live music, fishing in the lake, and taking out stand-up paddleboards. 

The Course: Long course (1.2 mile swim, 56 mile bike and 13.1 mile run), mountain bike triathlon (.25 mile swim, 9.7 mile mountain bike, and 2 mile run) and Olympic distance (1.5k swim, 40k bike, 10k run).
When: May 2-4, 2014
Where: Lake San Antonio, CA

[$195 for Olympic course, tricalifornia.com]