Hello! Exciting, you are planning to visit the beautiful island of Malta, covering the cities of Mdina, Victoria, and Marsalforn. Here are some tips for you to consider for your journey.

Best Time to Visit:
The best time to visit Malta is during the spring months of April through June. The weather is pleasantly warm, and the tourist crowds haven't peaked yet. This period is best for sightseeing and other outdoor activities.

Route and Accessibility:
Most international flights land at MIA (Malta International Airport). From there, you can take a taxi, rent a car, or use the public transportation to reach your destinations. Note that Victoria and Marsalforn are on Gozo island and can be reached by ferry from Malta's main island.

Accommodation and Booking:
There's a wide array of accommodations available ranging from luxury hotels to budget guest houses. Booking online in advance is generally a good practice to ensure a place that suits your preferences and budget.

Clothing and Essentials:
Given the warm and Mediterranean climate, light airy clothing is recommended. Don't forget your sunscreen, hats, and sunglasses. A good pair of walking shoes would be helpful for exploring the cities.

Health and Safety:
Malta has good healthcare services, but it's always wise to carry a first aid kit and medications for any personal health conditions. Tap water is safe to drink, but bottled water is recommended. Don't forget your travel insurance.

Local Etiquette and Respect:
Maltese people are known for their friendliness and hospitality. When visiting religious sites, respectful attire is expected. Tipping is customary in restaurants and for services.