I'm working my way across the UK bagging all hills under 600m (drop over 100m) and over 600m (drop over 15m), which obviously includes all the Marilyns. I tend to tick off areas as I do them and cross off tops with a highlighter on the relevant map. I did start entering a big list into Excel but failed to get through Wales, let alone England and Scotland.
My Marilyn total is larger this time than last year but I really haven't the energy to go through counting. When I get near to completion it should become easier as I can start with the total and subtract things I haven't been up. At my current pace I imagine being left with only the very tricky tops by about 2020. I'm also working my way through swimming the mountain lakes (altitude over 300m, length over 50 metres), although here I may be just aiming for England and Wales.
