If thrills are what you're after, head to Aquatic Center Krounebierg, located 0.9 mi (1.4 km) from central Mersch. If you'd also like to explore some of the parks in Mersch, head to Plateau du Kirchberg and Merl-Belair Park.
Pettingen Castle is just one of the landmarks located 1.4 mi (2.2 km) from central Mersch, so you might want to stop by for a few pics during your trip.
If you like quiet time surrounded by flowers and greenery, hang out at Plateau du Kirchberg in Kirchberg. Want to stretch your legs some more? Head to Merl-Belair Park and Edmund Klein Park, both nearby.