Ko Phi Phi Don generally has a friendly and laid-back atmosphere, even at night. However, it is always advised to follow basic safety precautions such as avoiding dimly lit areas and always staying alert of your surroundings. It is also a well-toured area, and the nightlife is quite robust and enjoyable. Nevertheless, it is always wise not to give in to excessive drinking and keep an eye on your drink at all times. Above all, always trust your instincts. If an area or situation feels uncomfortable, there's no harm in removing yourself from it.