Watersportclub Treech'42 is a well-established water sports club and marina situated on the banks of the Maas in the Sint Pieter district of Maastricht, Limburg.

Founded in 1942, it serves as a lively recreational hub for members and visiting boaters alike, with activities including swimming, canoeing, water skiing, and jeu de boules. The marina welcomes visiting boats and offers shore power and drinking water.

On-site facilities built up by members over the years include a swimming pool, playground, sports field, nine jeu de boules courts, a caravan area, and a bar-restaurant with a terrace overlooking the Maas.

The site is affectionately known locally as "'t sjoenste plekske aon de Maos" — the most beautiful spot on the Maas.