Have been here in the past, and it continues to develop with a lot of building work going on at present, set to open in May. There's a huge range of exhibits including a large shark tank and tropical reef with underwater viewing, and plenty of information including a lot of environmental messages. There's a small cafe halfway round for drinks and snacks. Admission is nearly 20 euros, but you get a lot for your money and it's cheaper if you buy a ticket online with a reduction for 4 people or more. Highly recommended.