Fluweelengrot Christmas Market (Valkenburg)
Underground Christmas market in the passages of the Fluweelengrot beneath Valkenburg castle ruins, with timed tickets.
Recreational swim, non-residents: €14.95; 65+: €12.95; under 2: €4.65. Reduced rate for residents of Gulpen-Wittem, Vaals and Valkenburg.
Set in the hills around Gulpen, Mosaqua is a subtropical pool run by Optisport, with slides and splash areas for families. It pairs well with a walk through the Heuvelland villages or a Christmas market in Maastricht or Valkenburg. Recreational swimming runs on Wednesday afternoons, Fridays into the evening and at weekends. Christmas-holiday hours were not yet on the official page when we checked. Tip: buy your entry online in advance, which is how recreational swimming tickets are meant to be sold.
Tap a day to see the hours.
openclosedspecial hours
Recreational swimming hours as published by Optisport. Holiday, Christmas and New Year hours not published; check before you go.
| Monday | closed |
|---|---|
| Tuesday | closed |
| Wednesday | 12:00–18:00 |
| Thursday | closed |
| Friday | 12:00–21:00 |
| Saturday | 11:00–18:00 |
| Sunday | 11:00–18:00 |
Christmas markets nearby for the same trip.
Underground Christmas market in the passages of the Fluweelengrot beneath Valkenburg castle ruins, with timed tickets.
A Christmas market underground in the marl passages of the Gemeentegrot: sheltered from the weather, with timed tickets.
New open-air Christmas market on the Walramplein, the heart of Christmas Town Valkenburg, with the illuminated parade on set evenings.
Winter village on two squares in central Heerlen: ice rink, ice slide, curling, a winter café and a winter market on some Sundays.
Christmas market in Kelmis — from 5 December to 6 December 2026.
Aachen's big Christmas market wraps around the cathedral and town hall, with the famous Printen gingerbread and stalls tucked into the old-town lanes.