Back in London, 15 minutes used to get me...well quite frankly - nowhere. But in Singapore, 15 minutes on a boat can get you to Big Sister's Island a.k.a Pulau Subar Laut.
Singapore Island Cruise and leave the hustle and bustle of the city behind you (but still be able to see it in the distance from the island!).
Should this be part of your Singapore bucket list? Without a doubt it should be.