You don’t want to miss a fun day at the Rez! The City of Boulder is hosting their Star Spangled Splash this July 4th. Live music, family events, a beer garden, youth games and prizes, sailing, and much more! The Reservoir is open from 5:30am to 6pm and all events happen within this time frame. Cost is $15/adult, $7/teens, free/12 & under. More details here.