Of course, here are some travel tips for your trip to El Haouaria, Kélibia, and Menzel Bourguiba:

Best Time to Visit:
The best time to visit these places in Tunisia is from April to June and September to November. During these months, you can enjoy a comfortable climate and relatively few tourists.

Route and Accessibility:
El Haouaria, Kélibia, and Menzel Bourguiba are accessible by road. You can hire a car or use public transportation like taxis and buses. The nearest international airport is Tunis-Carthage International Airport.

Altitude and Acclimatization:
These places are at sea level, altitude sickness shouldn't be a problem.

Accommodation and Booking:
Book your accommodation in advance for a seamless travel experience. You will find a variety of options including hotels, guesthouses and apartments depending on your budget and preference.

Clothing and Essentials:
Pack lightweight clothes for the hot climate. Swimwear will come in handy if you plan to visit the beaches or swimming pools. Don't forget to pack a hat, sunglasses and sunscreen to protect yourself from the sun. Keep a water bottle handy to stay hydrated.

Health and Safety:
Always carry a first-aid kit for minor emergencies. Tunisia is generally safe but be aware of your surroundings. Use bottled water for drinking and brushing your teeth.

Local Etiquette and Respect:
Tunisians dress modestly, it's good to respect this when visiting. Learn a few basic phrases in Tunisian or French as they are widely spoken. Respect the local culture and tradition.