I doing the Waiheke Coastal Classic on Thursday the 26th January, did it last year, a great race with DF95 and DF65 radio controlled yachts.
It starts at the eastern end of Surfdale around a mark (port) at the western end around the headland following the boats on The Esplanade port round at the eastern end of Blackpool then a port round at the western end of Blackpool and back to the finish in the middle of Blackpool. All the entries goes a to charity on the island.
Here's last years report.
Waiheke-RSC-Coastal-Classic-Charity-Race-Jan 2022.docx