Are these yachts actual America’s Cup boats?

Yes. Explore Group lists two former competition yachts, NZL41 and NZL68, in its Auckland fleet. NZL41 raced in the 1995 Louis Vuitton Challenge; NZL68 was used as a Team New Zealand trial boat before the 2007 America’s Cup campaign. The operator does not promise a particular yacht for each public sailing. See Auckland sailing tours for other ways to get on the water.