It was our 2nd visit to Amsterdam, but our 1st visit to The GreenHouse Effect. Wish we had found it last year. Lovely little bar, a real find. Good selection of Ales and 'Loopy Tuesday is 2 for 7€, try and go down the list, and ask for the Frank Skinner, Duvet or the Hatty Jakes! Recommend the selection of meats and cheeses, it's a nice accompaniment to go with the drinks. We had a good couple of hours in there, felt relaxed and enjoyed the atmosphere. Great location, very central, surrounded by loads more Bars, Cafe, and eateries! It's well worth a visit. Only downside was having to leave for the coach to the ferry.