Hello! It sounds like an exciting travel plan you have ahead. Here is some important information that could make your journey to Ghar El Melh, Bizerte, and Tabarka more enjoyable and comfortable.

Best Time to Visit:
The best time to visit these Tunisian cities is either in the spring (March to May) or autumn (September to November). The weather during these periods is usually pleasant and not too hot.

Route and Accessibility:
To get to these cities, you will most likely fly into Tunis Carthage International Airport. From there, you can take a taxi or hire a car to get to Bizerte. After visiting Bizerte, Ghar El Melh is around 31 kilometers southeast. Finally, Tabarka is about 136 kilometers from Bizerte. Public transport (buses and shared taxis — 'Louages') might be sparse, so it's advisable to rent a car if possible.

Accommodation and Booking:
Choosing accommodation in advance is the key. Online booking sites like Booking.com or Airbnb can help you find some great places to stay in these cities. It’s advisable to stay in reputed and well-reviewed places.

Clothing and Essentials:
It's essential to pack light and breathable clothes for the daytime and warmer clothing for the cooler evenings. Swimwear is also a must if you plan on beach activities. Don't forget sunscreen, a hat, and sunglasses to protect from the sun. And remember your comfortable walking shoes.

Health and Safety:
Ensure you are updated with all necessary vaccinations before your trip. Be sure to have travel insurance, and it's advisable to avoid tap water and ice in drinks. Always keep your belongings secure and maintain basic hygiene to avoid health issues.

Local Etiquette and Respect:
Tunisia is a Muslim country, so be aware that modest dress is appreciated, especially for women when not at beach areas. During the holy month of Ramadan, be respectful and refrain from eating, drinking, and smoking in public during daylight hours.