Splash pads in Maryland Heights, Missouri

Creve Coeur Lake is the St. Louis County escape where you can chain a paved 3.5-mile lake loop, paddleboat rentals, a destination playground, and a small splash feature into a full family afternoon. The lake itself is the main draw; the spray is the cool-down after the trail. Free parking is huge but fills by 10:30am — the trail crowd arrives early. Parent gotcha: the lake has a gradual but real drop-off and is not for swimming, paddleboats only. Bikes are gold for the loop if you have them. Pair with a stop at Maryland Heights' food strip. West-county STL's best half-day.