So i decided to take a week off last week to fill in a pond (the size of a lake) in our back garden. After spending £200 to just put shit in a hole i am now considering what to put on the surface and wondered if anyone had any experience in it.

I have a rather large back garden (reason why we brought the house) and have plenty of grass already, so we were looking for something different. We also have a 1yo girl who will very soon be walking - and already loves being out in the garden.
I stumbled apon this bonded rubber mulch, basically shredded tyres which you mix with a bonding agent and then smooth over.

looking to cover an area of about 10sqM, best price so far i have had for 10sqM worth of rubber mulch (delivered) is £475.

Any tips / advice or suggestions of other surfaces?

Cheers DF!