Water parks in later Feb, very beginning of March?
 

I have been assuming it will be warm when we go, 13th Feb-6th March, but actually on thinking, is it going to be warm enough for water parks? We wouldn't be going on big water slides, more splashing in pools, lazy rivers, sunlounger etc, but will it be too cold for this?

Definitely warm enough you just have to pick your day and wait until later morning for it to warm up. We have been 3 times in Feb and been to a water park every time.

We've had some lovely Waterpark days on our end Feb / early March trips. We did bale after an hour at Blizzard beach on 25th Feb this year, but even then it was only a bit nippy and by the time we were at the Outlets later that afternoon it had turned out to be a warm day after all.