They have the best location if you are staying around Hilton Hawaiian Village area as they are right by the Lagoon where Rainbow Tower is. You can just walk to their slip in minutes. They also provide rides if you are far away.
Most other Parasailing companies heading out from Waikiki have slips at the Kewalo Basin Harbor which is half an hour walk from HHV or 15 minutes by vehicles.
They used to have deal via Groupon, but didn't find it on this visit. Still booked through SavOn just like last time saved a few bucks each. About $130 for 2.
On this visit, waves were great for the surfers, slightly bumpy for us boat riders on the way out to release parasails.
This time we requested baptising in the ocean on the way down ( that's a gentle dunking in the water) before being pullied back onto the boat, and that's fun.
Overall highly recommended activity in Waikiki. For whatever rope length or duration you choose, the whole Waikiki backdrop including Diamond Head is not something to be missed while you are hanging (solo or tandem) in the air especially on a beautiful day like this!
Bring your GoPro or waterproof camera.
Or buy their SD card with your special photos captured for $30 at the end.