The ferry trip to Rangitoto island was amazing, the trip was around 30-35 minutes and got to see lots of volcano rocks. There was a package where there is a travel guide and a road train that can take you around the volcano which was around $65 per adult in a 4 hours trip
Always rely on Fullers for Ferry crossing, found them reliable and on time. You can save a lot if you book their "Hot Seat" special deal online, Auckland to Waiheke/Rongitoto $20 return..!
Vessels are kept clean and tidy most of the time and staff always friendly!
Ferry Building, Level 2 99 Quay St Auckland 1010