hi...cheap drink...easy, go to m & m 's (not, m g m's, which is close)
its in the bottom center, down at the back-top right, near the slow boat restaurant.
nice people own it, its small, but plenty seats round it.
wait till you buy drink there, 1euro pint, 1 vodka + sprite 1 Bacardi + coke 2.50 euro for both
PS and its OK for kids.