Is it safe for a woman on her own to walk from the hotel to a local supermarket during the day?
How far is it?
It is safe in my opinion but to walk it depending what direction you go in can be from 10 to 30 minute walk. However the staff at the hotel can point you in the right direction or get a taxi for you. It is cheap to get around in Sri Lanka just their driving can be like the wacky races sometime.
yes it is safe and market is within 500m
Yes is very safe don't worry. Actually if you stay at this hotel, the supermarket is jut outside :)
There are no local supermarkets near by. The only thing that you can do is to go with Uber at this Jamina mall and there you'll find supermarkets.
But the hotel has mostly whatever you want, indeed a bit expensive , but better than going outside.
I recommend you to go outside only if you want to do shopping.
Get an answer from The Gateway Hotel Colombo staff and past guests.