Dive-site story
Located off the southern coast of Lanai near Manele Bay, Sergeant Major is characterized by shallow volcanic ridges, spur-and-groove reef fingers, and pockets of clean white sand. The topography features small lava tubes and undercut ledges that provide shelter for nocturnal species during daylight hours. Dense aggregations of mamo (Hawaiian sergeant damselfish) hover in the water column above hard coral heads.
Schooling Hawaiian sergeant major damselfish hovering in the water column
Lava ridges and shallow basalt archways harboring resting marine life
Frequent encounters with green sea turtles and resting whitetip reef sharks
Location
Use the map to plan with your operator and confirm the exact entry point on the day.
Seasonality
Calm seas prevail through late spring and autumn, while winter months bring humpback whale song audible underwater.
Marine life
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hawaiian SergeantAbudefduf abdominalis | Common | ||||||||||||
| Green Sea TurtleChelonia mydas | Common | ||||||||||||
| Whitetip Reef SharkTriaenodon obesus | Common | ||||||||||||
| Moorish IdolZanclus cornutus | Common | ||||||||||||
| Yellowmargin MorayGymnothorax flavimarginatus | Common |
Marine forecast
