IMG Worlds of Adventure in Dubai, the world’s largest indoor theme park, is giving away free entry on August 31 to celebrate its first anniversary.

The first 365 guests to arrive won’t have to pay, and every 365th guest to visit will win an annual pass to the park, giving them unlimited access for a year.

To make things sweeter, those born on August 31 can avail a 50 per cent discount on birthday packages that day, though terms and conditions apply.

Live dance performances, a parade, Arabic entertainment and Marvel and Cartoon Network characters will welcome guests inside.

In-park celebrations will continue through Eid Al Adha holidays.

IMG Worlds of Adventure is a 139,354-square-metre theme park with 22 rides.