Certainly! Visiting Bucharest, Constanța, and Vama Veche offers you a well-rounded Romanian experience - from urban city life to beautiful Black Sea beaches. Here are some travel tips for you:

Best Time to Visit:
Your best pick are the warm months from late spring to early autumn, typically May to September, when weather allows exploring the cities and relaxing at Vama Veche beach.

Route and Accessibility:
You can journey through these cities conveniently by road or rail. Start your trip in Bucharest, then take a three-hour train or bus ride to Constanța. Afterwards, head to Vama Veche which is only 45 minutes away.

Altitude and Acclimatization:
There are no high altitudes to worry about, as these places are all near sea level.

Accommodation and Booking:
Book accommodations well in advance, especially during summer. From luxury hotels in Bucharest to beachfront hostels in Vama Veche, you'll find plenty of choices.

Clothing and Essentials:
Pack light summer clothes, swimwear, sunblock for the beach. For Bucharest city exploration wear comfortable walking shoes and carry a day backpack. Also, bring a light jacket for cool evenings.

Health and Safety:
Ensure you have travel insurance. Observe safety rules, especially on the beach and when swimming in the sea and stay hydrated particularly during summer.

Local Etiquette and Respect:
Romanians are very hospitable. Respect local customs, dress modestly (particularly when visiting places of worship) and be aware that it is customary to tip your waiter (10% of your bill is standard).

Enjoy your visit to Romania!