I went there with my boyfriend last year and cor blimey walking up that hill was a mission in the August heat!! We had a well deserved ice cream sundae from McDonalds ont he way home
Also I got sun burnt quite bad - I was constantly putting suncream on all day but obviously because of the water (and also I think because the screens around the outside are glass) you need to be very religious when applying suncream!
Good fun though, although I did think it was a bit expensive for what it was.