Definitely! Morocco is a wonderful blend of stunning landscapes, rich history and vibrant culture. Here are some travel tips for your visit:

Best Time to Visit:
Spring (April to June) and fall (September to November) are the best times to visit these Moroccan cities due to pleasant weather. The summer months can be extremely hot.

Route and Accessibility:
There are multiple options for transportation between these cities. Trains run from Tangier to Rabat, Rabat to Casablanca, and Casablanca to Marrakech. Alternatively, buses or taxis are also available.

Altitude and Acclimatization:
Aside from Marrakech which is situated at a higher altitude, the other cities are coastal and don't require acclimatization. If traveling to other parts of Morocco with high altitudes, take time to acclimate to prevent altitude sickness.

Accommodation and Booking:
Consider booking accommodations in advance. A mix of luxury hotels, budget hostels and traditional riads (Moroccan houses with a central courtyard) are available.

Clothing and Essentials:
Pack clothing suitable for warm days and cooler nights. Modest attire is appropriate in these predominantly Muslim cities. Don't forget your sunglasses, sunblock, and a hat for protection from the sun.

Health and Safety:
Avoid drinking tap water. Also, ensure that your routine vaccinations are up to date before traveling. Watch out for hustlers and scams, common in some tourist areas.

Local Etiquette and Respect:
Respect local customs and traditions. Try to avoid public displays of affection and dress modestly, particularly when visiting holy places. Always ask before photographing people.

Also, take some time to visit local markets, try traditional Moroccan food and immerse yourself in local culture. Enjoy your trip!