Purple and clear bell shaped jellyfish in the med

While staying at a resort in Cala dor on the island of Mallorca my wife and myself spotted some purple jellyfish in a rocky cove at the hotel, we then spotted a clear bell shaped jellyfish with four tentacles from roughly each corner (this jellyfish was very difficult to see). The tentacles of the purple jellyfish were short and thick while the clear jellyfish tentacles were thin and long. In total we spotted around four of the purple jellyfish and one of the clear jellyfish before we had to leave.