Have just had a day trip to Arran and thought I would add info. about the things we wanted to know before we went.
Caught the 9.45 boat, took 55mins. Fare £10,75 pp rtn.
Went as foot passengers. Left the car at Ardrossan in the secure car park at the CalMac ferry terminal....£1, for 6hrs, £2 for 24hrs.
Did a tour of the island with Stagecoach...£5.15 for day rider ticket.
Bus went all round the island took 2 and a half hours,
Buses stops are at the terminal, drivers are very helpful.
After the island tour we still had time to get the bus to Brodick Castle, toured the Castle then the gardens before getting the bus back to the terminal (day rider ticket included this)
Caught the 16.40 ferry back. Would have got a later ferry if the weather had been better but it came on to rain hard when at Brodick Castle.
Great day out, hope this is of use to any one planing a day out.