seriously u wont enjoy it there! i've been about 10000000000000 times and theres only been a few paintined i was actually pleased to be able to see the rest is just weird shite!

go to the london dungon its only about 5-10 mins walk from the tate up the river, or go to namco just round the corner from the tates next to the wheel. play on the bumper cars

but its gunna be PACKED there as the tates nears the wheel and thats always crawded even on a weekday