Butterflies at NHM
Here's another possibility for both entertaining and educating the kids over Easter: Sensational Butterflies at the Natural History Museum in London. Many butterflies need the salt in sweat, so the sweatier your kids are, the more butterflies will land on them. Get them to run round the block a few tines! Visits are timed and you need to book in advance. The price for everybody is £3.50. The only concessions are for Art Fund members £1.75 and families (2 Adults, 2 Children) £12.00. Click the title link to book. Entry to the museum is free.