Hello there! It's exciting to hear that you're planning to visit San Cristóbal, Mérida, and Trujillo. Here are some detailed travel tips to assist you.

Best Time to Visit:
The best time to visit these cities in Venezuela is during the dry season from December to April when the weather is pleasant and ideal for exploring.

Route and Accessibility:
Major airports near these locations are Simón Bolívar International Airport and Santiago Marino Caribbean International Airport. You can then use local transportation, like buses or taxis, to reach these cities. Hiring a car for the duration of your stay can also be convenient.

Accommodation and Booking:
As these cities are popular tourist destinations, there are several hotels and homestays available. You can look for and reserve accommodations on popular booking apps or websites. It's advisable to book in advance especially if you're visiting during the peak season.

Clothing and Essentials:
Pack light summer clothes for the day, however, the nights can get chilly so include a jacket or light sweater. Don't forget your sunblock, hat, and sunglasses. Carry a water bottle to stay hydrated and some local currency for emergencies.

Health and Safety:
In terms of health, consider getting vaccinated for Hepatitis A and Typhoid before you travel. As for safety, it's advisable to be vigilant and avoid flashy displays of wealth to minimize attention. Always lock your belongings and use authorized taxis.

Local Etiquette and Respect:
People in Venezuela are generally warm and friendly. It's customary to greet with a handshake, and using formal titles until invited to use first names. Spanish is the most spoken language, so learning a few phrases will be appreciated.