In reply to Hatbat:
A couple of suggestions for Snowdonia
a) by the summit obelisk on Mynydd Tal-y-mignedd on the Nantlle Ridge - an excellent high camp
b) the area between Cnicht (south) & Moel Meirch (north), near one of many Lakes (Llyn Edno, Llyn Llagi)
c) the head of Cwm Pennant/Afon Dwyfor, northwest of Moel Lefn, west of Beddgelert forest
d) from roadhead parking north end of Llyn Eigiau; either south into Cwm Eigiau, or westerly round to Dulyn reservoir (Dulyn bothy or nice camping down the valley (north east from reservoir)
e) around Ffynnon Lloer, north from eastern end of Llyn Ogwen along the A5
And a host of other places to be explored too!