It is best to apply for a visa in China. Visa on arrival is too expensive. (Book the hotel in advance) You can take a bus directly from Singapore to Malacca, Malaysia. When you arrive, check into the hotel first and then go out for fun (note: there are many pickpockets in Malaysia).
One day trip to Malacca, the witness and birthplace of Malaysian history.
After arriving, visit Malacca's famous places of interest such as: Sambao Temple and Sambao Well in memory of the Sambao eunuch Zheng He, visit the Dutch Red House left over from the Dutch colonial era in the 17th century, then walk to the hill to visit the ruins of St. Paul's Church, and at the same time you can look around the world.
The famous Straits of Malacca, and then visit the Fang Mosa ancient city gate left over from the Portuguese rule in the 15th century. The next day, go to the Sultan Palace, jewelry processing factory, Batu Caves (outside view), go up to Genting Highlands and transfer to the high-altitude cable car on the mountainside to Genting.
Upon arrival, visit the world-famous Monte Carlo Genting Casino and try your luck.
then return to hotel to rest.