Techamphibian, used to be called Amphibian from Salomon.
Check it out online.
Have been using for both land/water sports.
Quick-dry, very airy and tolerant.
So take note of what kind of surface the wet market uses and the areas aound it. It will help you buy not the best but the more suited for that kind of flooring.
They make workshoes but in many stylish designs, suitable to meet clients.
I haven't tried this brand but I've used Rossi, another Australian workshoe brand that is very similar in design to Blundstone. The grip is very good, in water, even on oil... no slip.
I haven't seen Rossi in Singapore (I still want to get a pair of these but will have to go Aus) but I've seen Blundstone in an outdoor supplies shop around Geylang area...
Sorry, I can't remember the name of the shop and it is not listed on the website... maybe you can write to them to ask where are the distributors in Singapore.
The best photographer is one who is inspired by the innate nature of his subjects.