Hello! It sounds like you're planning a great trip to Romania. Here are some travel tips that may be helpful for your visit to Câmpulung, Târgoviste, and Bucharest.

Best Time to Visit:
The best time to visit Romania is from late April to early June, and from late August to the end of October when the climate is mild and the countryside is at its most colorful. However, if you want to enjoy Bucharest's vibrant cafe scene, summer is a perfect time.

Route and Accessibility:
The easiest way to travel between these Romanian cities is by car or train. For Câmpulung, there are no direct train services from Bucharest, so the best option is to rent a car. Târgoviste is easily accessible by train from Bucharest. From Târgoviste to Bucharest, you can either take a train or a taxi.

Accommodation and Booking:
It is recommended to book hotels or guesthouses in advance, especially if you're planning to travel during the high season. Sites like Booking.com and Airbnb offer a variety of accommodations in all three cities.

Clothing and Essentials:
The weather in Romania can be unpredictable, so dress in layers. Be sure to carry heat-resistant clothes for summer and warm clothes for winter. An umbrella or rain jacket could come in handy as well.

Health and Safety:
Romania is generally a safe country to visit. Still, be aware of your belongings in crowded places, and take standard precautions to avoid pickpocketers. Have your travel insurance and necessary medications handy.

Local Etiquette and Respect:
Romanians are generally friendly and appreciate when travelers make an effort to learn a few words in Romanian. Respecting local customs and traditions is also important, with a more conservative approach to dressing suggested when visiting religious places.