Captain Calypso's Code
A treasure hunt adventure with puzzles and codes at the Musée des Enfants.
Mabel activities
Indoor ideas for kids in Brussels
Browse 14 indoor ideas ideas in Brussels for 6 Sep 2026.
14 activities
Museums
Museum visits and exhibitions that work well as flexible family outings.
Climbing & Bouldering
Climbing gyms and bouldering options to compare before choosing a venue.
Swimming
Pools and swim-friendly options open today around Brussels.
Indoor Play at CityKids
Children can enjoy a variety of indoor activities like ninja courses, arcade games, and a cinema at CityKids.
Indoor playgrounds
Indoor play spaces where children can climb, slide, jump, and move around.
Combat sports
Children and teens can participate in Thai boxing, English boxing, and Jiu-Jitsu classes at Gym Equilibre venues.
Mini Jump
A weekly indoor trampoline session at Jump XL for young children with an adult companion.
Show for Toddlers
A 30-minute family-friendly planetarium show exploring stars, planets, and constellations in multiple languages.
Earth, Moon, Sun!
A family-friendly planetarium show combining an educational film and sky presentation about Earth, Moon, and Sun relationships.
Explore - Film & Sky Presentation
A 30-minute astronomy film followed by a sky presentation at the planetarium.
Time Tent - Film about the Universe
A family-friendly film about the Universe's history, star and planet formation, early life, and evolution at the Chapiteau du temps.