Join me in bagging the high point of Hawaii! Mauna Kea stands 13,802 ft above sea level. Climbing it in January is not recommended due to winter conditions. But hey, we're Alaskan Mountaineers!! As a summit reward, we can soak our cold, tired feet in hot sandy beaches afterwards.
Much of the mountain is under water; when measured from its oceanic base, Mauna Kea is over 133,000 ft tall, making it the world's tallest mountain from base to summit, surpassing Mount Everest. Mauna Kea is about a million years old. There's a high likelihood of snow travel to reach the summit.
Another summit goal is Mauna Loa. The largest subaerial volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on Earth. It is an active shield volcano with relatively gentle slopes, with a volume estimated at approximately 18,000 cubic miles, although its peak is about 120 feet lower than Mauna Kea. Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive. Mauna Loa has probably been erupting for at least 700,000 years, and may have emerged above sea level about 400,000 years ago.
Besides these two peaks, snorkeling & caving are on the agenda.
I plan to camp, but others are welcome to suggest alternate accommodations.
Lots of information is available on-line, so please do your research if you have questions.