Archives for Diving Lanai

Knob Hill

Knob Hill, Lanai

Knob Hill is an interesting and very nice dive site.  It is fairly shallow about 55 to 60 feet (16 to 18 meters) and teeming with life.  However, it is often not possible to dive on this site due to strong currents .  The dive site is just off the coast of Lanai by the Four Seasons Hotel.  The name comes from a large rock formation near the surface that is supported by four columns.  This is a large dive site on the south side of Lanai that is quite exposed.  I have been diving around Lanai for over 12 years and have been on this site maybe three or four times.

Knob Hill Rating = 3.86 out of 5

  • Visibility – moderate to very good
  • Access – Moderate; boat only and 45 to 50 minutes from Lahaina Harbor
  • Current – moderate strong most of time
  • Depth to 60 ft / 18 m
  • Reef health Hard / Soft Corals – Very Good
  • Marine species variety – Very Good
  • Pelagics / Mammals / Turtles / Rays – moderate to good, typical at least 1 to 3 sightings up close, sometimes many more

The only reason this site is not rated higher, is the current makes it a very difficult dive site to dive 80% of the time.  If the current is mild this is an awesome site.

Knob Hill Overview

Knob Hill Reef, Steven W Smeltzer, Lanai

Knob Hill Reef

Knob Hill has a number of swim throughs and volcanic structures, such as the “table” above that make the site quite interesting.  The marine life on the site is varied and abundant.  You will almost always find large schools of Pennant Butterflyfishes along with a wide variety of other  Butterflyfishes, Dascyllus, Yellow Tangs, Sea Turtles, White-tip Reef Sharks, various eels and much more.  Once the boat is on the mooring at Knob Hill, the dive master make take you on several different routes around this expansive dive site.  The hard coral here is quite healthy due to the current and infrequent visits by divers.  There is a nice swim through / cave where you can frequently find White-tip Reef Sharks.  You can also see quite a few nudibranchs on this site and rare species such as the endemic Yellow-striped Coris and Reticulated Butterflyfish.

Knob Hill, White-tip Reef Shark, Steven W Smeltzer,

White-tip Reef Shark, Profile, Triaenodon obesus, (Rüppell, 1837), mano lalakea, Lanai, Hawaii

There is also a nice swim through / cave on the site where you can many times find White-tip Reef Sharks.  This shark in particular was quite curious and swam with me through the swim through.  He even gave me a nice profile. 🙂

Visit my blog page Hawaiian Dive Site Reviews, to view reviews of other great dives in Hawaii.

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The pool is open…..

Scuba Diving Lighthouse

Scuba Diving Lighthouse

Scuba Diving Lighthouse is always a treat.  It is located off the island of Lanai which provides some of the better dive sites in Maui County.  Lighthouse is a great dive site that is not visited often due to the distance from Maui.  I dive this site with Lahaina Divers, my favorite dive shop on Maui, usually on a drift dive charter that runs each Thursday.  Check out Lahaina Divers, dive schedule for more information.

It is about an hour around to this site from Lahaina Harbor and it is usually a nice boat ride, but the channel between Maui and Lanai can be rough so if you are prone to sea sickness, make sure to take Bonine, ginger, use the patch, etc., before you get on the boat.

Scuba Diving Lighthouse

Scuba Diving Lighthouse

Lighthouse Rating: 3.11 out of 5

This scuba diving site gets its name from a structure on shore that resembles a small lighthouse.  The site has a number of large boulders strewn around the bottom and has a wide variety of marine life.  This scuba diving site can get blown out by wind and current and be very cloudy.  However, the boat captain and dive master will check out the conditions prior to getting in the water.  The conditions today were great.  The sea was very flat, the current was quite mild and the visibility was 100+ feet.

Scuba Diving Lighthouse: What You Will See

You can typically see smaller White-tip Reef Sharks, a wide variety of butterfly fishes, Triggerfishes and much more.  Make sure you check in the cracks and crevices where you can find octopus, a wide variety of eels, crabs, shrimps and other small marine life.  The hard corals here are also in good shape as they get a lot of nutrient and not many divers on the site.

Scuba Diving Lighthouse is a treat if you are going to be on the Maui for a few days.  I usually dive on Lanai two or three times during each trip and Lighthouse is often the second dive on Lahiana Divers’ Lanai drift dive.

Scuba Diving Lighthouse

Whitemouth Moray Eel

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The pool is open…

Ahhh… Hawaii.  Back on the island of Maui and looking forward to some great diving.

Scuba Diving Lanai

Light From Above

The day began with a short ride over to the island of Lanai for our first dive at First Cathedrals.

I am diving with Lahaina Divers, my favorite dive operator on the island.  I have been diving with them for almost 10 years and they are a great choice for scuba diving Lanai.

First Cathedrals is a lava tube that rises to the surface of the ocean.  As the name implies there is a large underwater dome inside the lava tube with a number of openings where light shines down into the “cathedral area”.

This is one of the most popular sites for scuba diving Lanai and even though I have been on the site dozens of times, I still thoroughly enjoy the dive.

The entrance into the lava tube looks small and dark, but the interior is quite large.  The “cathedral” measures approximately 60 feet in length and the height varies from 10 feet to 40 feet.

Scuba Diving Lanai: Inside the Lava Tube

Scuba Diving Lanai First Cathedrals

Scuba Diving Lanai

If you have ever been to a church or cathedral with stained glass windows, you probably noticed the light shining through the glass as you entered the chapel or sanctuary. This dive site gets its name from a similar effect caused by the light shining in through the holes in the lava tube, e.g, the stain glass windows.

Another interesting feature of this dive site is the exit from the lava tube. It is fondly know as the “shotgun”, because when you exit, the surge may “shoot” you out of the cathedral as you surf the pressure wave. If the wave action is strong, it reminds me of what it must feel like to be “flushed”.  But don’t worry; the exit is wide and I go through it with my camera with no problems.

First Cathedrals Into the Light

Into the Light

If you are concerned about exiting this way, just let your dive master know and you can exit via the way you came in and just circle around the pinnacle to meet up with your group.  This site also has several other interesting lava formations off the main lava tube and a variety of marine life.

First Cathedrals has been the site for numerous underwater weddings and proposals and it is a great place for underwater photography.  To get the best photographs, it is important that everyone going into the “cathedral” is careful not to stir up the bottom or you will get a lot of backscatter in your photos.

In order to get the best lighting effects, I check the forecast to see when it is going to be sunny and then compare that to the Lahaina Divers’ schedule.  You can get the best photos when it is sunny and you can see rays of light coming through the holes in the lava tube and shining down inside.

Inside First Cathedrals

Scuba Diving Lanai First Cathedrals

You can frequently see turtles, dolphin, eagle rays, sharks and wide variety of fish, eels and coral on this dive site.  Please check out some of my other photos of First Cathedrals and underwater photography of Hawaii on my website.

The pool is open….

First Cathedral is one of the most visited scuba diving sites on Lanai and in Maui County. It is a dual pinnacle site and is also one of the largest scuba diving sites in Maui County.

The mooring at the pinnacle is about 35 feet deep on the shallow portion and has a large arch on the west side. The northern side of the site has a wall with lava caves, crevices to explore and a swim through arch. A sand channel separates this from the wash rock pinnacle that comprises First Arch, First Cathedral, Lanai Hawaii (Steven W SMeltzer)Cathedral. The large cavern, of the Cathedral, has a maximum depth of 45’-50’ deep and a ceiling overhead which is approximately 20’ high. It has a lace work of openings in the lava on the east wall that allows light to flow inside.  These openings seem very much like stained glass windows within a church or cathedral.

Rays of Light, First Cathedral, Lanai Hawaii (Steven W SMeltzer)When you enter the water on the mooring you you will swim first toward the Pinnacle containing the lava tube known as First Cathedral.  Then after exploring the “Chapel” as I like to call it, you exit rather quickly, or as some like to say, you are flushed from inside First Cathedral to reef outside. There is an opening on the inside of the Cathedral which has water rushing in and out with the actions of the waves. You swim to the exit “portal” and then hold on as the water rushes into First Cathedral and then when the flow reverses you enter the portal and are rather quickly deposited on the outside of the reef. This is not as intimidating as it might first seem as the opening is fairly large and you only travel a short distance before exiting on the reef. That said, if you have a camera, please bring the strobes in before entering the portal and you should not have any trouble. If this is too much excitement you can exit the Cathedral the same way you entered and simply swim around to the other side.Light and Altar, First Cathedrals, Lanai Hawaii (Steven W SMeltzer)

First Cathedral is an ancient lava tube that has several openings on the upper portion and side of the cavern. These openings allow light to pass through them and provide some great opportunities for underwater photography. I especially like black and white images of the cathedral as they seem to provide the most dramatic effects with the light. The ceiling “window” provides very good lighting (assuming sunny skies) on a rocky outcrop in the Brick Soldierfish, Myripristis amaena, (Castelnau, 1873), Lanai Hawaii (Steven W SMeltzer)middle of the room and you can see “rays of light” shining in from the top of the dome making for some interesting underwater photography. The opening to enter the cathedral is very large and should not cause anyone concern. First Cathedral can hold many scuba divers at one time but I find it best, especially when trying to take photographs, to be in a small group or be first. Having a larger number of divers will stir up a good bit of sediment making it especially difficult to take good shots. It is also better to be in “group 1” verses “group 2” if you have a large number of divers on the boat as the silt in the Cathedral will tend to get stirred up as more divers are going through the cavern.

Bluestripe Snapper, Lutjanus kasmira, Molokai Hawaii (Steven W SMeltzer)Once inside First Cathedral, you will find a number of different fish species and more than likely a school of Brick Soldierfish up towards the ceiling. When you exit the cavern you will be on a portion of the reef that usually has a nice diversity of marine life. You will head towards a swim through where you will find a number of different butterflyfishes, moray eels, frogfishes, nudibranches, goatfishes, and much more.

There are several archways to swim thru and the coral gardens are great places to look for eels, shrimps, and small crustaceans. So take your time on this site and you will be well rewarded.

The pool is open…..