Be aware that places in Bangkok can shut up shop overnight without any warning. Before you venture out I would advise checking out recent social media activity for your destination. There used to be a place called Ozono which has a dog park, groomers, boarding, café etc. and was supposed to be awesome. We turned up one Saturday and it had been completely cleared out!
These places do exist at the time of writing but beware!
Nong Bon Lake
This is literally a 35-minute drive from Ekkamai but you genuinely feel a million miles away from the city. It is beautiful! It’s a man-made lake where you can do various water sports but there’s also a path/running/cycling track around and unlike most other parks, dogs are allowed! I’d been wanting to bring the dogs here for ages but Chris kept saying they’d get too hot and we’d have to leave in after ten minutes. Anyway, the rainy season has brought some moderately cooler temperatures so we decided to give it a go. Obviously, on the day we chose to go it was glorious sunshine but we were prepared with lots of water for the dogs.
I think normally you can walk all the way around the lake but when went there seemed to be some sort of maintenance activity blocking our path so we had to turn around. Most people seemed to be taking their dogs up a different path which ended with a pretty little windmill but also required you to retrace your steps.
The dogs loved it! They were particularly intrigued by the monitor lizard that crossed our path as we made our way back to the car park.