This week Thursdays in Pella is all about staying cool on a hot summer’s evening with the theme “Splish Splash Summer Bash.” There will be a dunk tank with some local coaches, sprinklers and water games, and the Army Corps of Engineers will host a water safety booth. The band Now Serving Seven is performing on the Tulip Toren stage from 6 to 7:30. The KNIA/KRLS Lil’ Big Red Radio will be on hand playing music and reporting from downtown Pella.