Currency and typical costs
Croatia adopted the euro (€) on 1 January 2023, retiring the kuna, so everything is priced in euros and cards work almost everywhere, from supermarkets and fuel stations to motorway toll booths. Keep a little cash for small konobas, the Pazar green market and the odd village shop, but you'll rarely need much. ATMs are plentiful in Split and the larger coastal towns; in summer, skip the high-fee Euronet machines on the Riva and use a bank-branded ATM instead.
Split is no longer a budget stop. Budget roughly €20–50 a night for a coastal campervan pitch in July and August, with spring and autumn often 20–30% cheaper. A coffee on the Riva runs about €2.50–3.50 and a half-litre draught beer €4–6, while a main in a mid-range restaurant is around €18–35. Cooking in the van and shopping at Tommy, Lidl, Konzum or Plodine is the easiest way to keep the trip affordable, and Tommy in particular is the dominant chain across Dalmatia.
Language and staying connected
Croatian is the official language, but English is widely spoken across Split and the Dalmatian coast, especially by younger people and anyone in tourism, so you'll manage easily at campsites, ferry desks, restaurants and fuel stations. A few words still earn a smile: "Dobar dan" (good day), "Hvala" (thank you) and "Molim" (please).
Mobile coverage is strong. 4G reaches almost everywhere you'll drive, and 5G now covers the coast, the A1 motorway and the main islands such as Brač, Hvar and Korčula, though signal thins out in their rural interiors. EU and EEA SIMs roam at your home rate under "roam like at home"; visitors from elsewhere can grab a cheap local SIM (Hrvatski Telekom or A1) or a Croatia eSIM. Save Google Maps offline before you head into the Cetina canyon or onto remoter island roads, where the signal can briefly drop.
Power, water and gas
Croatia runs on 230V / 50Hz with Type C and Type F (Schuko) sockets, the same standard as most of mainland Europe, so a French, German or Italian van's hook-up lead and chargers plug straight in. UK and North American travellers need the right adapter, and remember that US 110V appliances also require a voltage converter, not just a plug adapter.
Tap water is safe to drink throughout the Split region, fed by the karst Jadro spring (the same source that once supplied Diocletian's Palace) and meeting EU standards, so fill your fresh-water tank and bottles straight from the tap and skip the bottled stuff. Campsites supply potable water and electric hook-ups, and most have chemical-toilet and grey-water disposal. Gas is the one weak spot: bottle exchange is uncommon in Croatia and refills are only possible for in-date, locally dated cylinders at INA stations or the odd campsite, so set off with enough gas and confirm what fitting your rental van uses before you leave.
Driving, tolls and overnighting
The A1 motorway links Split to Zagreb and is a distance-based toll road: you take a ticket on entry and pay by card or cash in euros at the barrier when you exit, with no vignette to buy in advance (an ENC transponder only pays off, with discounts of up to about 21%, if you drive Croatia regularly). The scenic coastal D8 "Magistrala" is toll-free but slower and busy in summer, and it's the road you'll take down to Omiš and the Cetina canyon. Drive on the right, use dipped headlights in tunnels, and reach roadside assistance (HAK) on 1987.
One rule matters for campervans: wild camping and sleeping outside designated sites is illegal across Croatia, and on the coast and islands fines typically run into the hundreds of euros and can reach four figures. Motorway rest areas are fine for a short break but not for an overnight stay. Stick to official campsites and camper stops, of which there are plenty around Split, Trogir, Omiš and the islands, and book ahead in July and August, especially if you're taking the van across on a Jadrolinija car ferry to Brač or Hvar. For any emergency, dial 112.