we used our Tesco Clubcard vouchers to get the Olympus MJU310. Waterproof and shockproof. Should be £170 but with the voucher exchange had to use just £85 worth of vouchers.
used it on the SIB and at centre parcs on the slides and in the pool.
Quite pleased really, especially as it feels like it was free
There is a voucher exchange going on right now uptil 11 june.