dolphins can be found the ocean off gran canaria year round,

http://www.orcaweb.org.uk/orcanews2004grancanaria.htm

http://www.dolphin-whale.com/ingles/ing.htm

for information, I think im ok to post the sites if not,

T/O s do trips and plenty can be booked from the harbour, most will offer 2 hours plus spotting and about 70% - 80 % chance of seeing them, some will offer repeat trips until you do see them.

Whales, sea turtles and flying fish are also things you may get to see during your trip.

Thanks Neil - will definately book a trip and hope we'll see some turtles too.