There is two ways to come to Bol from Split. One is that you get the ferry from Split to Supetar (first ferry you have in 06:15 and another for each 2 hours until midnight) and when you came to Supetar, if you not have car, you must take taxi for Bol (bus lines are not recommended because they are pretty rare and you travel all around the island to finally reach Bol). Taxi is about 50 kuna per person (depends how many people he drive in the van) but is the easiest and secure way to get to Bol from Supetar. Second way to come to Bol is the catamaran - fast boat that leads you directly from Split to Bol. It leaves Split in 16:30 and you are in Bol for an hour. With ferry and taxi your voyage from Split to Bol will last for 2-3 hours. Ferry costs about 35,00 kuna, catamaran costs 55,00 kuna for one person. My recommendation is catamaran but it's up to you to decide.

If you coming with catamaran when you arrive in Bol on the opposite side of the harbor (on the left side) you will see the gas station. Just go ahead that the sea is on your left side and after 30 meters from that gas station you will see the souvenirs shop Jolly Bol, and there you are. Just check in in the shop.

Bol is small place and that walk from ferry to souvenirs shop will last about 10-15 minutes.