We are proud to announce that martinhal lisbon cascais family resort hotel previously the onyria marinha edition hotel thalasso will be opening in spring 2016 combining the lisbon city experience with historic sintra scenic guincho and gorgeous cascais our hotel will deliver an amazing holiday experience for the family the future martinhal cascais is also located right in the middle of 2 championship golf courses quinta da marinha and oitavos perfect for golfing families and groups