Top of the canal where the lights are. One corner is Broadway restaurant, one is Florida, one Sports Bar with the Devamli
Hotel above - this is the nearest corner to the bank machines. Taxi rank is in front. I'm not entirely sure of the location of Senem, but if you're on the main road with Tansas heading away from Tansas/Market end, do a left immediately before Kangaroo Apartments (bank underneath, think it's Akbank) - and walk towards the beach, you'll soon seen them after you've gone past Rush Bar, Eda Hotel, and the small playground