Undercurrent reader Deborah Telesmanic (Potter Valley, CA)
was on Maui diving in November and passed along this tip.
 Telesmanic and her friend booked a day trip for two dives
  aboard the Extended Horizons, which crosses the channel from
  Maui to Moloki. Because the channel can be rough, only a
  few companies make the crossing, all using larger boats (no
  6-packs). Deborah and her friend learned that the boat company
  would allow one of Octopus Reef’s instructors to ride
  along free as a “private guide.” Splitting the $100 cost of the
  guide for the day paid off in several ways for Deborah and
  her friend. They were always the first in and the last out of
  the water, meaning they got to dive almost TWICE as long as
  the main group. In addition, their guide was a great source of
  marine information, pointing out sea life and allowing them to
  see a lot of creatures the main crowd probably missed as well
  as take photos that were clear of the junk inevitably kicked up
  by a gaggle of divers. This kind of premium service might be
  available at other dive destinations if divers asked, and it may be
  worth the few extra bucks, so consider making the inquiry.
 Dive Makai has been a longtime favorite for Undercurrent  readers diving the Big Island of Hawaii. Now owners Tom
  Shockley and Lisa Choquette have put their operation up
  for sale. If you feel the calling to run a dive operation in
  Hawaii and have $850,000 socked away, you can contact them
  at lisa@divemakai.com, but that’s not the tip. The tip is that
  Lisa plans to start a small 6-pack-sized operation for experienced
  divers that will dive the places no one else goes and
  find the animals no one else sees. If they get the operation
  set up, it may be worth trying. If you’re headed for the Big
  Island in the future, check with Lisa at the the e-mail address
  above as to the status of their new endeavor.