Boats of tourists visiting the dramatic natural arch at the Blue Grotto, Malta, Mediterranean, Europe

travel destination photography horizontal colour image europe outdoors day mediterranean malta maltese culture blue grotto sea grotto natural arch rock rock formation natural landmark geology high angle view tourism tourist tour boat exploration adventure large group of people men women passenger on the move waist up colour color image color outside tourist destination travel high angle elevated view from above looking down landmark place of interest group tourists holiday maker holiday makers on holiday on vacation european