Legoland Florida, the Merlin Entertainments-operated attraction which opened its doors for the first time in October in Winter Haven, US, has announced its first expansion plans.

A new Legoland Water Park is to be built as part of the project, which is due for completion by mid-2012 and will comprise a wave pool and a 1,000ft (305m) Build-A-Raft lazy river.

Twin chasers will see friends ride tubes down an intertwining pair of 375ft (114m) enclosed water slides, while Splash Out involves a 60ft (18m) drop down slides into water below.

Joker Soaker will provide an interactive playground with various lengths, heights and types of slides, while Duplo Safari will provide a water play area designed for toddlers.

The waterpark will join the other attractions including The Beginning at Legoland Florida, which spans 150 acres (60.7 hectares) at the former Cypress Gardens theme park site.

Legoland Florida general manager Adrian Jones said: "The water park attraction has been designed for families with children ages two to 12, and will add hours of water play to an already full day."