漏出“天窗”的熔岩管，夏威夷火山国家公园 (© Tom Schwabel/Tandem Stills + Motion)
1 or 2….or, if you will be on the island for 10 days or longer, or if this is your #1 priority, or if you are dedicated hiker or naturalist, maybe 3. VNP is huge, with many hours worth of drives and hikes. Also, it will likely be sunny in the morning then start to rain the afternoon, so you may not have full days. With all that said, I spent one day, about 8 hrs, in the park and felt completely fulfilled. TOP SITES (IMO): 1) Kilauea Iki Trail – amazing hike through old crater, 2hr 2) Crater Rim Drive – incredible drive from visitor center down to ocean, through massive lava fields, 2-4hr 3) Halema’uma’u trail – beautiful hike through a rainforest down to the active Kilauea crater, 1.5hrs 4) Kikaeau overlook – this is the active volcano, you can also see the glow at night, 1hr—-This is my “best of” list and a good full day, you can see it adds up to 6-8hrs. If you feel like you will want to do more hiking than this, add another day. Hope this helps!