Money. The currency is the Bahraini Dinar (BHD), one of the highest-valued currencies in the world -- one dinar is worth roughly 2.65 US dollars. ATMs are everywhere and credit cards are accepted at most hotels, restaurants, and shops. Smaller souq stalls and taxis may prefer cash.
Visas. Citizens of many Western countries, including the US, UK, and EU nations, can get a visa on arrival or an e-visa for stays of up to 14 days, extendable to 30. GCC nationals do not need a visa. Check the latest requirements before you travel, as rules change periodically.
Language. Arabic is the official language, but English is widely spoken and understood, especially in Manama and tourist areas. You will have no trouble getting by with English alone. Hindi, Urdu, and Tagalog are also common among the expat community.
Safety. Bahrain is very safe for visitors. Violent crime is rare and petty theft is uncommon. Use normal precautions with your belongings. Political demonstrations occasionally occur but rarely affect tourist areas.
Alcohol. Unlike most of its Gulf neighbors, Bahrain permits the sale and consumption of alcohol. Hotels, bars, and licensed restaurants serve beer, wine, and spirits. Public drunkenness, however, is taken seriously by police and can result in arrest.
Dress code. Bahrain is relaxed by Gulf standards, but modesty is still appreciated. In malls and public spaces, covering shoulders and knees is sufficient. Beachwear is fine at hotel pools and beaches. When visiting mosques, women should cover their hair and wear loose clothing.
Ramadan. During the holy month, eating, drinking, and smoking in public during daylight hours is prohibited out of respect for those fasting. Most restaurants close during the day but open after sunset. Hotels typically keep a restaurant open for non-Muslim guests. Nightlife quiets down significantly.