Hello there! It's great to hear that you're planning a journey across the vibrant and beautiful province of Bicol, Philippines.

Best Time to Visit:
The ideal time to visit Naga, Legazpi, Donsol, and Sorsogon, would be during the dry season, from November to May. The temperature is warm and pleasant during these months and is perfect for outdoor activities and sightseeing.

Route and Accessibility:
You can reach Naga City either by flight or by bus from Manila. From Naga, you can take a bus or a van to get to Legazpi, Donsol, and Sorsogon. The region has well-developed transportation systems and tricycles are quite popular for local travel.

Accommodation and Booking:
There are a wide range of accommodation options available in all these cities from budget to luxury hotels. It's recommended to book your hotels in advance, especially if you're planning to visit during peak season (dry months).

Clothing and Essentials:
Pack lightweight and breathable clothing due to the warm and sometimes humid weather. Don't forget your swimming gear, sunblock, insect repellent, hats, sunglasses, and comfortable walking shoes for sightseeing.

Health and Safety:
Be aware of potential heatstroke in high heat situations, and always maintain hydration. Do remember to get travel insurance. It's also advisable to check the latest travel advisories due to tropical cyclones that can sometimes hit the region, especially during the wet months.

Local Etiquette and Respect:
Filipinos are known for being hospitable and respectful. A smile and a polite greeting are always appreciated. Always ask for permission before taking photographs of locals or private property.