We will be going to Legoland for a couple of days and have the rest of the week to fill so rather than coming home what/where else can we go. Will be doing Windsor as part of LL and dont really want to go into London, so where else can we go for anotehr 2-3 days?
Okay do spend some time in Windsor, ice cream by the river. Walk over to Eton (really interesting), maybe a boat trip. Then on your way back drop into Beckonscot in Beaconsfield, we have travelled 1 1/2 hours to get there and loved it every time. Then I would also suggest stopping at Aylesbury and doing the local museum and the Roald Dahl place (which is very very different from normal museums). We have also done the Cotswold Motor place (can't remember its name) at the end of the M40 ish.
How about thorpe park as well? we used to prefer chessingotn, but in the last couple of years Thorpe Park is much improved. We have an annual pass for all merlin attractions and have been 4 times already this year and still not bored of it. My 5 yr old dd loves the smaller rides. Also keep in mind that if you are going to LL in peak season you may not get everything doen in two days so might not have time to go into windsor. Windsor is lovely to spend a day in, especially if its dry. lots of little shops, streets to explore, a very small fun fair down by the river. Boat rides down the thames. You can eat cheaply as well if you don't mind the chains as right outside Windsor castle there is a Nandos and a MacDonalds, also a weatherspoons. We've eaten in the Nando's a fair few times and hopefully this sunday as well. A fab cupcake shop as well.