For those who want to see a volcano in action, the lure of Hawaii's Big Island may be getting too much to resist.
The volcanic vents, or fissures, have gobbled up dozens of homes and vehicles, with 37 structures so far destroyed.
Authorities say the volcano has produced almost 20 active lava fissures and destroyed more than two dozen homes.
Cancellations from May through July have hit at least $5 million, said Ross Birch, executive director of the island's tourism board.
Most of Hawaii Volcanoes National Park remains closed since Friday, due to several possible threats including a possible steam explosion at Kilauea. The industry grew the fastest on the Big Island a year ago compared to other islands in the archipelago, pulling in about $2.5 billion in visitor spending.
1,800 people are already evacuated.
In addition to the threat of gas and fissures, there are concerns about what's known as phreatic eruptions.
A separate fissure is still active after it formed on Sunday.
The newest flow appears to be heading towards the ocean and a highway. Since then, fissures have been generated mostly in Leilani Estates subdivision, where almost 2,000 residents were ordered to evacuate.
People nixing vacations to Hawaii's Big island has cost the tourism industry millions of dollars as the top attraction, Kilauea volcano, keeps spewing lava.
Dr. Alvin C. Bronstein, the Hawaii State Department of Health's chief of the Emergency Medical Services and Injury Prevention System Branch, spoke during a press conference held outside the Hilo civil defense headquarters on Monday afternoon, where he reiterated that leaving the area of volcanic activity is the best way to protect yourself from SO2.
Residents living near the fissure were told to evacuate and two nearby community centers were serving as shelters for people and pets.
These are steam-driven explosions that occur when water beneath the ground or on the surface is heated by magma, lava, hot rocks, or new volcanic deposits, according to USGS.
Hawaii's erupting Kilauea volcano threatened highways after two more fissures opened in the past 24 hours, bringing the total to 19.
In this Sunday, May 6, 2018 photo provided by the U.S. Geological Survey, a lava flow moves across Makamae Street in the Leilani Estates subdivision near Pahoa on the island of Hawaii.