Orchard - Bukit Tamah short tours
Riders Lodge hotel is a good hotel away from the busy bustling city life and at walking distance to few nice restaurants. I really enjoyed staying at Riders' Lodge hotel, the location is unique for Singapore and a Singaporean like me. I will choose this hotel again and will come back for another stay and will definitely recommend Rider's Lodge to my friend.
Jade - US
For birdwatching, I'd definitely recommend Sungei Buloh. They have guided tours (free, I think) early in the morning and it's great to go there with a guide because you learn so much more.... I did that twice - once on my own and once with the guide and it was so much better with the guide because he had a telescope and could tell us the names of all the different birds, just by their calls and then show us where they were.