27 March 2017 Last updated at 08:45 BST
While they can be a lot of fun, they also cause quite a few trips to Accident and Emergency.
A recent investigation by the BBC found that in just one year, ambulances were called out to 30 different trampoline parks in the UK more than 300 times.
Watch Ricky's report.
There will be around 150 trampoline parks in the UK by Easter.