Watersportbedrijf "De Lits" is a full-service water sports business and marina situated on the Lits river at Eastermar, centrally positioned between the Burgumer Mar and de Leien in the Noardlike Fryske Wlden.

It lies along the popular Lits-Lauwersmeerroute and serves as a convenient base for cruising toward destinations such as Earnewld, de Alde Feanen, de Veenhoop, and Drachten.

The marina holds around 80 permanent berths for cruisers, sailing boats, and dinghies, with visiting boaters directed to the nearby Passantenhaven De Komerk in the village.

Facilities on site include shore power, water, showers, toilets, a trailer slipway, and waste-water disposal. The business also operates as an official Mercury dealer, offers motor repairs and a chandlery, and provides insulated winter storage for boats.

Eleven camper pitches with electrical hook-ups are located directly alongside the marina and open water.