1. The best time to stay is late spring and early autumn, as at this time the weather is favorable and hotel prices are appropriate. Most travelers visit the island in summer; during this period hotels are always crowded and prices can rise up to two times.
2. Mains voltage is 220 V, so certain appliances may require special adapters. Some hotels provide them on demand. However, you can buy adapters in any specialized shop.
3. Payphones are common on the island, they remain the best option for those who are going to make international calls. Such machines take special cards, which are sold at almost all news stalls, supermarkets and post offices.
4. There is no public transportation on the island, so vacationers can take a taxi to move around. Local taxis aren’t always equipped with meters, so it’s necessary to negotiate the cost of services beforehand.
6. Those who expect to devote a lot of time to the study of natural attractions have to take comfortable shoes. It’s better to make trips in the morning or evening, when the sun is not that hot.
7. Prices in local markets and shopping stores are able to surprise even budget travelers. You can bargain with sellers, but don’t expect big discounts. The fact is that many indigenous people have a very modest income, that’s why they aren’t eager to reduce the price.
Island of Sumatra offers its guest not only conventional beaches, but also quite unusual places for rest. Lake Maninjau situated in silent volcano crater is one of distinctive landmarks of … 
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Indonesia: travelling advices
11. There is no tipping system in Indonesia. But it is customary to leave a reward of 5-10% of the cost of services provided by the taxi driver, porter or guide. 12. Your clothing should be modest and must cover the knees and shoulders if you visit a temple or mosque. You must leave donations during your visit to the temple. They are included automatically in the ticket price of some major temples. You cannot stay at a level higher than the priest or gifts in the temple. It would be extremely disrespectful to stand in front of a praying person.
13. Indonesia is an island country. Therefore, the aviation mode of transport is very well developed here. It is better to use a taxi or rent a car with a driver to travel directly around the Islands. Car traffic is left-hand and very erratic on the Islands. There are very few signs on the roads.
14. Purchases are paid in cash in Indonesia. Currency exchange is performed at the exchange office, airport, and hotels. You can pay with credit cards in restaurants or large stores. Traveler's cheques are useless in Indonesia. … Open
