this is in the amsterdam forest (het amsterdamse bos). it is called "the bosbaan" and is a rowing lake. but its used for swimming too.... when we were there, again a few weeks back, we stumbled upon the triathlon. well, it was 1/8 of a triathlon (i think). they had to swim 750 metres, then bike 20 km, and run 5 km. when a pool of swimmers was released, the water was not this calm, but soon after it become sleek like above.... watching this all made both me and tim sort of wanting to join as well. but we dont have wetsuits (it wasnt cold, so i dont think it was needed), and we also dont have fancy bikese... would a normal dutch bike suffice as well? then i would try... but all the contestants had fancy bikes and helmets (and some a big beer belly; that convinced me i could join as well!). some would come out of the water and jump right on their bikes. others would change (some would even strip completely). some were in a hurry, others first dried themselves before putting on their next set of clothes. same when to returned for their run... quite interesting to see.....!