Visit the Merlion at One Fullerton. Right by One Fullerton you can find lovely restaurants, coffee shops as well as bars/restaurants for a great Saturday night out in Singapore. You can also cross the bridge and walk over to esplanade on the left, Marina Bay Sands on the other side of the river! The Latern Bar is present on top of the Fullerton Bay Hotel and you could perhaps watch the National Day fireworks from there.
You can also take a walk and get some middle-eastern food at Arab Street located at the heart of Kampong Glam. The nearest MRT Station would be the Bugis MRT station. The place is very lively on the weekends too and is usually open till late night. It's is full of small shops and restaurants with middle-eastern souvenirs like lamps and shawls and great food.
Street shopping at Bugis Street is a big attraction for tourists. If you're looking for more shopping, be sure to visit Orchard Road. Lots of shopping malls, movie theaters, restaurants, hotels and high-end brands reside here. The road gets very crowded and lively on the weekends but is a must visit in Singapore.
A trip to the East Coast Park or Changi Beach Park is a great family/friends day out where you can go cycling, have a barbecue or just relax at the beach. You could spend a day at MacRitchie Reservoir and go trekking or kayaking. You can take a look at some of the nature-intensive destinations in Singapore for trekking and trails. Also check out Gardens by the Bay.
You could also go for a nature trail to the Henderson Waves starting at Mount Faber. The Jewel Box is a lovely restaurant at Mount Faber with lovely views. The Cable Car Ride to Sentosa also starts from Mount Faber.
Singapore Botanic Gardens
Take a walk in the Singapore Botanic Gardens on a pleasant morning and then stop for brunch at Food for Thought. The place has lots of variety in the menu, be it brunch, mains or dessert. You can also walk down to Tanglin Mall near the botanical gardens.
Sentosa Island & Resorts
You could also spend a weekend relaxing on Sentosa Island either at one of the resorts or on the beach. If you're looking for a full day out, a visit to Universal Studios at Resorts World Sentosa will be an exciting and memorable experience.
Harbourfront & Vivo City
On your way back from Sentosa, take the boardwalk back to Harbourfront Centre instead of the train. If you're looking for just some easy shopping and a good meal, you could go to Vivo City and be spoilt for choice.
You can walk to tons of restaurants at the boat quay and the Clarke Quay Area. They are very lively on Friday night and weekends. Walking down Boat Quay is lovely on a Friday or Saturday evening. There are lots of restaurants and pubs right by the river and you have a huge variety of cuisines to choose from. If you're looking for something quieter, check out Robertson Quay.
Singapore’s one of the best places to be to satisfy your inner culture vulture. There’s a whole range of different types of museums to visit in the city–from design-centric venues to specialised institutions. Visiting the Art Science Museum at Marina Bay Sands as well as the National Museum of Singapore at Dhoby Ghaut is pretty good for a day out.
Batam Island, Bintan Island of Indonesia
If you're looking to go out of the city and Singapore, you could spend a weekend at Bintan Resorts or Batam Island, both of which are islands in Indonesia. They are just a 45 minute ferry ride and the visa is paid on arrival. They have great not-too-expensive resorts as well as good food and shopping in Batam.