So when your kid develops a new obsession for whales, sharks and all things fish (the hen/cow phase is officially over) the one place to take him is the London Aquarium.
Where, When, How Much?
Situated next to the London Eye, it's easily accessible from Westminster Station.
The Aquarium is a busy place. There are queues, so it's better to go early in the morning or late in the afternoon.
It's not cheap; adults pay £21 and children £15 (under 3s go free, fortunately), but they offer online and late admission discounts.
What is There?
Sharks, lots of them, swimming gracefully in huge tanks. Gigantic sea turtles and friendly rays (they actually surface for you to touch them). Colourful exotic fish, golden piranhas (really, they are covered with glittery scales). Mesmerising jellyfish, corals, Nemo-like clownfish, playful seahorses (did you know there's a seahorse colony in River Thames?)