Huge New Legoland Water Park To Open Next Month With Lazy River And Waterslides Stewart Perrie 6:04 AM, May 21 2021 GMT+1 It's only a few weeks until Italy's LEGOLand opens up and the photos from the amusement park look absolutely incredible. Loading… The epic theme park will throw open its doors on June 15 and will boast loads of rides, a lazy river, drench buckets, water slides and even a sandy beach. It was all set to open last year but, as we're all aware, the pandemic swooped in and put a big hold on the €20million park's big reveal. Advert But, after many months, the date is now just on the horizon.