We cruised to NZ pre-Covid and used the company Yehootu has posted above. They have a combined Hobbiton and hot springs excursion from Tauranga that we took. It was a long day but worth it and they are a great company.
We are cruising again to NZ January next year. We enjoyed Hobbiton so much we have booked to go again. Hot springs were a once and done for us. We have booked through same company again.