Every Yacht Week Croatia marina is 15 to 30 minutes from Split Airport. Bus 37 (about €3) serves Kaštela and Trogir; taxis are easiest for groups.
Kaštela Marina: taxi about 15 min, about €25. Bus 37 stops at the marina entrance.
Trogir Marina (SCT/ACI): taxi 10 to 15 min, about €30. Bus 37 to Trogir, then a short walk.
Marina Baotić: taxi 20 to 30 min, about €45. Or bus 37 to Trogir plus a €15 taxi.
ACI Split Marina: taxi about 30 min, about €45; ask for F Cafe, where Yacht Week check-in is. Or the Croatia Airlines shuttle to the Riva (about €5), then a short cab.