Absolutely! Visiting Bešenová, Dudince, and Komárno in Slovakia will be a unique and beautiful experience. Here are some tips for you:

Best Time to Visit:
The best time to visit these thermally rich areas in Slovakia is during the months of May to September when the weather is warm and pleasant.

Route and Accessibility:
The countries are well served by public transportation such as buses and trains. You can also rent a car for a more convenient trip. Bešenová is around 3 hours from Bratislava, capital of Slovakia. Dudince and Komarano are about 2 hrs and 1 hr respectively.

Altitude and Acclimatization:
The altitude in these areas is not very high so you don't have to worry about acclimatization.

Accommodation and Booking:
There are several hotels and guesthouses in these areas. It's best to make your booking in advance especially during the peak season to guarantee accommodation. Websites like Booking.com, Airbnb provide multiple options.

Clothing and Essentials:
The weather in Slovakia can be quite unpredictable so it's best to pack a mix of both light and warm clothing. Don't forget your swimsuit for your thermal bath spa. Carry essential items like travel charger, water bottle, medicine kit, etc.

Health and Safety:
If you plan to indulge in any strenuous activities, make sure to check your physical condition first. Also, adhere to all safety rules and regulations.

Local Etiquette and Respect:
Slovaks are quite reserved and polite. Always respect the local customs and traditions. It's also customary to leave a small tip in restaurants. Don't forget to try out the local foods and interact with the locals to get a real feel of the culture. Enjoy your trip!