Eastern-Frisia is not particularly known to be the paradise for xc-flights. But yes, sometimes even we have our big days. Enough wind and plenty landing options are almost always available - which is something to build on. Please have a look at some of our flights in the DHV-XC listing.
All sites
Nortmoor (SSW-NNO)
Flugplatz Barßel-Lohe (WNW-OSO)
Bunde (NNW-SSO)
click on XC-ppoints or km to get a sorted list. Otherwise it is sorted by date.