Erlebnispark Bliesgau - Openair-ice-skating as well in the summertime
an out-door-allyear-ice-skating opened just a few miles from Ramstein-Kaiserslautern.
Kind of event-park for kids and adults as well.
see here some sites:
https://erlebnispark-bliesgau.de/project/ganzjahrige-schlittschuhbahn/
so - maybe another idea for the holidays coming..