Are there water taxi services available for the entire track?

No, there are no water taxi services available for the entire Abel Tasman Coastal Track. Commercial water taxis operate between Marahau/Kaiteriteri and Totaranui, covering the southern and central portions of the track. However, water taxis are not permitted to go above Totaranui, so there is no direct service to Wainui or any of the Northern bays. If you wish to travel beyond Totaranui, you can use the Gibbs Hill Track to make a loop in the Northern end of the park.