Pack your main luggage but remember to pack a backpack and a day bag so you can put in the essentials for your day trips. While you can keep your travel documents behind at your hotel, you need to be mindful to keep a copy of your passport with you in your day bag in case you are requested to show it to get entrance to a tourist attraction or even a restaurant. Take a photograph of your passport and visa to be able to show it at the request and pack the essentials such as water, sunscreen, mosquito repellent, and other necessities in your day bag to take along with you.