While in Alvor it is worth to take a boat trip along the Algarve coast and watch some dolphins.

There are a number of companies run Algarve dolphin watching trips from the marinas in Lagos and Portimão and Alvor Harbour and also from Albufeira.

They all use high speed Rigid Inflatable boats or RIBs, which are the same vessels that coastal services use as lifeboats. Apparently this means that you won’t get seasick, although they do travel pretty fast. One of the companies even gives you a "no sea-sickness" ride, money back guarantee. High speeds are required to cover the sometimes large areas required to enable the dolphins to be found in the hour and a half or two hours you have for the trip.