Kaumalapau Harbour can be found on the west coast of the Hawaiian Island of Lanai and has earned the reputation as being the island's main harbour. The scenic harbour, surrounded by wide bluffs and jagged cliffs, is the point form which the majority of ships and fishing vessels leave. The establishment of this harbour came about during the time when the pineapple industry was still the island's main trade and fruit was being exported. Today this place is relatively quiet and has a very relaxed atmosphere with only the odd fisherman every now and again walking along the harbour.

Lanais Kaumalapau Harbour is however an excellent fishing spot, whether it be sitting on the dock or casting off from one of the many harbour walls. Unfortunately fisherman and visitors alike need to be aware that there are no restroom facilities in the immediate area.

Kaumalapau has been included by some as one of Lanais beaches, which is a bit misleading because it is in commercial shipping waters meaning that most water activities are not allowed primarily for safety reasons.

Another major attraction is the tide pools which are located on the one side of the harbour. These little pools are mini habitats that are home to a number of marine species that are fascinating to observe. As previously stated this Lanai coastal area is protected by surrounding sea cliffs which also have the added effect of shielding the tide pools. Visitors are advised to be cautious when setting foot into the tide pools as the ocean can turn in an instant. The lava outcrops are rough and slippery when wet so explorers are advised to invest in a pair of reef shoes. Chemicals and ingredients found in most sun blocks and sunscreens can damage the delicate ecosystems that exist within the pools.

Lanais weather patterns, when you take into consideration its size, are quite diverse, offering cool forested areas through to gleaming sun drenched coast lines. Rainfall only ever really occurs in the first three or four months of the year, making Lanai one of the driest of the islands, thus accounting for its sun-baked colour. Lanai Weather conditions ever really see continuous showers being delivered to this little island. Lanais weather conditions with regard to temperature are quite stable throughout the course of the whole year, averaging between 80 and 90 in the summer and only falling no lower than about 54 in the winter months.