We used nappy nippas on DD's cloth nappies, and she never managed to undo them. We even used them over the velcro nappies. But we had a 2 part nappy with separate nappy and cover, I'm not sure what you use.
We watched eurovision too, then I had to get up with DD at 6.30 this morning. Definitely someone else's turn tomorrow!
Despite hideous traffic meaning we didn't get to Bournemouth until 4 pm, we managed to get to the beach for a couple of hours yesterday. A took his sand castle building very, very seriously. Not impressed with the cold sea!