How to enter Indonesia.
It is possible to enter Indonesia through the international airports of Soekarno Hatta in Jakarta and Ngurah Rai in Bali, where a 30-day, extendable tourist visa will be issued (for europeans). Due to the changing global situation, we always recommend referring to government sites.

Language.
The official language of Indonesia is Indonesian. While in the more touristic places like Bali and Yogyakarta English is quite spoken, this cannot be said in the less touristic areas (like Flores, in our case). In these areas it is preferable to always have a local reference guide.

Currency and exchange.
The official currency is the Indonesian Rupiah.
Credit cards almost always work at ATMs in very touristic places like Bali, much less so in places like Flores; since there are still few commercial establishments that accept electronic payments, it is advisable to have a sufficient supply of cash.
If you are traveling with euros and want to change them, go to the bank (signs with BCA or BRI writing), avoiding the unfavorable exchange rate at airports and street shops.
Before leaving, always ask your bank about the withdrawal conditions and the daily limits of your cards abroad.

Getting to Indonesia.
For sure, swimming would be challenging ...
All jokes aside, international flights will land in Bali and Jakarta.
I believe that to date there are still no direct flights from Italy, and therefore there is at least one stopover to make.
Keep in mind that a trip considered "short" lasts at least 16-18h (from Europe), including stopovers.

Internal Travel.
Scooters, buses, ships, private drivers and planes: to get around Indonesia you need to have time, be prepared and, as we say here in Genoa, essere desbelinati! (= you have to know how to manage).
We recommend, once you have completed your travel plan, to take all airline tickets for domestic flights, and to contact all appropriate rental agencies. For any doubts do not hesitate to contact us or write us in the comments!

Bali.
The island can be visited with a scooter, a car or with a private driver.
Renting a scooter (we opted for a 125cc) will allow you to save money and avoid queues due to traffic.

Mount Bromo.
You can get there comfortably with a private taxi driver, or with more effort (and time available) by train + bus + feet from Surabaya. Once you arrive in the village closest to Mount Bromo you will have 2 choices:
1) Attempt a long crossing to the viewpoint to see the sunrise and then descend towards the caldera of Mount Bromo (More than 10 km of road and a whole day to dedicate to it).
2) Purchase a comfortable 4WD excursion. With this solution you will be taken with a powerful off-road vehicle first to the viewpoint to see the sunrise, and then, through the caldera, to the nearest parking lot to climb to the top of the volcanic cone of Mount Bromo. Ideal for those with limited time.

Yogyakarta.
We visited the city on foot, while we turned to a private taxi driver to reach the temples of Borobudur and Prambanan.
Alternatively it is possible to use the bus line that leaves from the main street Malioboro.

Komodo archipelago.
To enjoy an unforgettable adventure, the first choice is to rent a small crewed boat, with all services included, for at least 3 days / 2 nights.
There are also day trips, but in our opinion they do not lead to a deep enough contact with the wonderful nature and magic of the place.

Flores.
Flores was the furthest stop on our trip. The island is poorly connected, and the roads that run through it are in a bad state of maintenance for several sections: to enjoy the trip in "relaxation" we recommend a private driver.

Safety.
Overall, for the places we visited, Indonesia seemed safe.
Many times we have received a very good welcome, and we have not had the inkling of a possible dangerous situation, however ... in Bali, be careful not to be scammed when buying any object: they know that you are tourists!

Eating.
Indonesian food is of Asian type, in our opinion very good, with a predominance of chicken and fish, always accompanied by the inevitable Basmati rice.
The quality of local food in restaurants is generally good, even in the most remote places, with the meat well cooked.

Absolutely to try:
- Nasi Goreng, a rich single dish based on boiled and sauteed rice with chicken, shrimps and vegetables.
- Bebek Goreng, a popular Indonesian duck dish served with tofu, tempeh and vegetables.
- Gado gado, a bean sprout and vegetable salad
- The very famous skewers of fish, chicken or pork called Satai

The tropical fruit of the place is exquisite: try in particular the Pitaya (or dragon fruit), the very special Salak (or snake fruit), the Guava and the Jambrol, red fruit with an intermediate taste between a pear and an apple.

For those who do not want to give it up absolutely, a European-style cuisine is present only in the most cosmopolitan places such as Bali and Yogyakarta.

Accomodation.
While both in Bali and Yogyakarta you can choose accommodation for all tastes and budgets, this cannot be said in Flores, which due to the lack of services has almost an obligatory choice (except the most famous Labuan Bajo, point of departure for maritime excursions to the Komodo islands).
In case you decide to book a multi-day trip to Komodo, know that the price varies according to the modernity of the boat and the number of participants. (We rented a simple fishing boat with few comforts, but all to ourselves).

Climate.
The Indonesian climate is equatorial in the northernmost islands such as Borneo and Papua, sub-equatorial in areas such as Sumatra, and tropical such as Bali, Jakarta and Flores.
The tropical climate is distinguishable from the other 2 because there is a less rainy season, which runs from June to September, ideal for planning a vacation.
If you decide to visit Mount Bromo (2400mt) remember that temperatures can reach a few degrees above freezing at night, so bring some warm clothing (a 100-gram space-saving duvet will be perfect).

What to pack.
Swimsuit, sunscreen, mask and snorkel are imperative!
The rest of the space available will be left for summer-only clothes, with a place for a heavier jacket or sweatshirt in case you decide to get on Bromo to see the sunrise!

Power outlets.
The electric current in Indonesia is 127V and 230V, while the electric frequency is 50 HZ AC. The electrical sockets are type C, type F (the same as the Italian one), and type G, with an additional pole in the center, of British derivation. Bringing an adapter is good and enjoyable.
Useful power sockets.

Telephone / internet coverage.
Given the very high tariff cost of our telephone operator, we did not use roaming, deciding to rely on the wi-fi connections of the hotels chosen for the stay.
On the Komodo Islands and in many areas of Flores the word "telephone coverage" is not covered, so you can spend a few days completely disconnected from the world (in 2019).