Yes, Sentosa Island in Singapore is home to a significant population of Long-Tailed Macaques, which are the only species of monkey commonly found on the island. These macaques are highly adaptable and are frequently spotted near the forested areas, along the coastal trails, and even around hotel pools like those at The Barracks Hotel or Shangri-La Rasa Sentosa. While they can be fascinating to watch, visitors are strictly warned not to feed them, as this causes the monkeys to become aggressive toward humans in search of food. They are known for their "mischievous" behavior, often stealing bags or food from unsuspecting tourists. In 2026, Sentosa has increased its signage and educational efforts to remind guests that "A fed monkey is a dead monkey," as habituated animals often have to be removed for public safety. For the best (and safest) viewing experience, keep a respectful distance, avoid crinkling plastic bags which they associate with food, and enjoy watching them display their natural foraging behaviors in the lush tropical greenery of the island.