If you're a fan of live theater productions, experience a play at Stichting Theater Twee Hondjes. Check online for prices and times.
If you're planning to stick around a while in Hellevoetsluis, Stichting Theater Twee Hondjes is a fine place to kick off your exploring. This arts and culture attraction is one of numerous attractions that'll keep you on the hop here. Rockanje Beach, Aquapark Splash, and Droogdok Jan Blanken are also waiting to be explored nearby.