When these power schemes were developed part of the deal was to create facilities such as boat ramps, toilet blocks and they also had to allow access for recreational activities.
One guys got in the shit for the rowing setup on Lake Ruataniwha and then got recognized for it.
I would be surprised if the right to to have power stations, headworks etc on public land the public use of access roads isn't a given as well.
I know one or two people who work for Genesis so will make some enquiries but guys from Turangi should know some as well.
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