Shore Diving Lanai???

[FishCity]

Well now one person owns almost everything on the island. The hotel has its own boat. Trilogy gone except for Maui daytrips. Probably easier to bring your stuff with you from Maui and dive from Hulopoe Beach.
The hotel offers diving but may be restricted to hotel guests. You could ask Hawaii Surfing | Scuba Diving | Four Seasons Resort Lanai

 

[LFMarm]

Is the hotel the only place that rents tanks? I don’t need anything else

 

[FishCity]

I don't know. You might call them and ask. Or call a Maui dive shop, they probably know.