How about hiring a kayak and combining that
with a walk in the Park?...
Numerous possibilities exist to combine independent kayak hire with walking in Abel Tasman Park.
Buses are available to/from Totaranui, Wainui and Takaka.
Here are some suggestions for kayak/walk combos:
Kayak from Tata and drop off kayak at Totaranui, then walk back to Tata - 2 days kayaking, 1 to 2 days walking.
Kayak from Golden Bay and drop off kayak at Totaranui, then walk south to Marahau - 2 to 4 days kayaking, 3 days walking.
Kayak from Golden Bay to Marahau, walk north to Totaranui or Golden Bay - 3 to 5 days kayaking, 3 to 4 days walking.