Yes, like many tropical destinations, Koh Kradan is home to mosquitoes. Being an island in the Andaman Sea, there are areas with standing water and lush vegetation where mosquitoes can breed. Travelers should take precautions to protect themselves from mosquito bites, especially during dawn and dusk when mosquitoes are most active. It is recommended to wear light-colored, long-sleeved clothing and use insect repellent containing DEET when venturing outdoors. Additionally, keeping doors and windows closed or using mosquito nets while sleeping can help prevent bites. Some resorts and accommodations on the island may also provide mosquito nets for added protection.