Agree lol..what a great venue for lunch- I wouldn't want to back to work. I love sea photos. I went to a headland in Cornwall last year-Bude,that was it and there was the same lighthouse type structurer there. It's stone built and has slot opening round it. Almost like an observation tower. I've just googled it and found it. It's identical,it's a Cost Guard shelter. Thee's a few photos of it here.
http://www.google.co.uk/images?hl=en&biw=1336&bih=997&gbv=2&tbs=isch:1&btnG=Search&aq=f&aqi=&oq=&gs_rfai=&q=compass%20point%20cornwallThis one gives an explanation too.
http://www.cornwallinfocus.co.uk/walking/bude.php
