Whether you want to collect beach glass or watch the sunset, Plage de Babouillat is a spot you might want to check out, located 15.7 mi (25.3 km) from central Koumac. If you want to continue walking by the waves, head to Plage Est and Plage Ouest, both within a short walk.
Sightseeing doesn't mean you have to blow the budget. For some things to do in Koumac, enjoy the outdoors at Koumac Caves or Plage de Babouillat. Be certain to include a visit to Plage de Kûdo.