I think Pasir Ris is nice, but too small for so many dogs, especially when some of them actually bring quite big dogs there. I stopped going there (a little too far for me) and just go to West Coast dog run ...
Being a male dog he will urine everywhere when he goes out. This is just to mark his teritories ... My Bruno riases his leg about 20 times in a short walk along a 500m walk ... sometimes nothing even comes out ...
Actually this is very common ... but considerate owners will always take their "naughty" dog away so that they do not become a nuisance. When they are let off, the "naughty" ones will come back again ... I think this is something that cannot be helped ... Even boys "humping" boys ... But NEVER NEVER bring a female in heat or coming into heat to these dog runs ... just asking for trouble.
Come to West Coast, its easier to take photos there cos the place is so big and there are also a few photogs that are regulars there, including myself.
Being a boy, this is the trouble. They can raise their leg and spray thing ... I never experience and realise this until i got a male ... and then I saw that he was spraying some of the corners of the walls, and most of the table legs ... unlike female dogs that just squat down