Big Island Volcanoes, Coffee & Farmers Markets Guide

The Big Island measures 4,028 square miles, making it larger than all other Hawaiian islands combined and still growing through active volcanic eruptions. Hawaii Volcanoes National Park occupies 333,308 acres on the southeastern slopes, containing two of Earth's most active volcanoes: Kilauea, which erupted continuously from 1983 to 2018 and resumed activity in 2020, and Mauna Loa, which last erupted in November 2022. The 2018 Kilauea eruption destroyed over 700 homes in lower Puna and added approximately 875 acres of new land to the island's coastline. Mauna Kea rises 13,803 feet above sea level, but measured from its base on the ocean floor, it reaches 33,500 feet, making it the tallest mountain on Earth when calculated from base to summit. Mauna Loa's volume exceeds 18,000 cubic miles, composing roughly half the Big Island's total landmass.

Hawaii Volcanoes National Park receives approximately 1.5 million visitors annually, most arriving between April and October. The park's Crater Rim Drive remains partially closed following the 2018 collapse of Kilauea's summit crater, which dropped over 1,500 feet and expanded the caldera to approximately 3 square miles. The 11-mile Crater Rim Drive originally circled Kilauea Caldera, but only the western section from the visitor center to Devastation Trail parking remains accessible. Chain of Craters Road descends 19 miles and 3,700 feet from the crater rim to the sea, ending where lava flows crossed the pavement in 2003 and again in 2016. The Thurston Lava Tube, a 500-year-old tunnel formed by flowing lava, extends approximately 600 feet through the rainforest and stands tall enough for most visitors to walk upright without stooping. Jaggar Museum closed permanently after the 2018 eruption damaged its foundation, though the overlook beside it remains the primary viewing point for Halema'uma'u Crater's lava lake when active.

Kilauea's current eruption cycle, which resumed in December 2020, fills Halema'uma'u Crater with a lava lake that fluctuates between 400 and 600 feet deep depending on eruptive intensity. The lake's surface temperature ranges from 1,470 to 1,650 degrees Fahrenheit. Gas emissions from the crater produce vog, a volcanic fog containing sulfur dioxide, carbon dioxide, and water vapor, which spreads across the island and sometimes reaches as far as Oahu, 200 miles northwest. The park measures sulfur dioxide emissions in tonnes per day, with typical rates between 1,000 and 5,000 during active eruption phases. Visitors with respiratory conditions receive specific warnings about vog exposure, particularly on the leeward Kona coast where tradewinds push the plume.

The park entrance sits at 4,000 feet elevation near the village of Volcano, where annual rainfall averages 100 inches and temperatures range 10 to 15 degrees cooler than coastal areas. Morning temperatures regularly drop to the low 50s even in summer months. The Kilauea Visitor Center opens at 9 AM daily except December 25, charging 30 dollars per vehicle for a seven-day pass. The park permits 24-hour access, with visitors permitted to view the crater's glow after dark from designated overlooks. Backcountry camping requires permits obtained at the visitor center, with designated sites located along the 18.3-mile Mauna Loa Summit Trail and the coastal Halape shelter, which sits 7 miles from the trailhead.

Kona coffee grows exclusively on the western slopes of Hualalai and Mauna Loa in the North Kona and South Kona districts, spanning approximately 2,290 acres of certified coffee farmland. The coffee belt extends 20 miles from Holualoa to Honaunau, occupying elevations between 700 and 2,500 feet where morning sun, afternoon cloud cover, and volcanic soil create specific conditions for arabica cultivation. Coffee arrived in Hawaii in 1828 when missionary Samuel Ruggles planted Brazilian cuttings in the Kona district. By 1900, Japanese immigrant families operated small plots averaging 5 acres, a pattern that persists with approximately 650 independent farms, most under 5 acres, producing 2.7 million pounds of green coffee annually.

Kona coffee's harvest runs from August through January, peaking in October and November. Pickers harvest ripe cherries by hand, making multiple passes through the same trees as cherries ripen at different rates. A skilled picker collects 100 to 200 pounds of cherries per day, yielding approximately 20 to 40 pounds of green coffee after processing. Blends labeled "Kona Blend" legally require only 10 percent Kona beans, with the remainder typically sourced from Central or South America. Pure Kona coffee sells for 30 to 60 dollars per pound at farm gates, while grocery blends containing 10 percent Kona sell for 8 to 12 dollars per pound.

The Kona Coffee Belt Road, sections of which form Highway 180 and Highway 11, passes directly through coffee farming communities. Greenwell Farms, operating since 1850, offers free tours showing processing from cherry to roasted bean in facilities 3 miles south of Kealakekua. Hula Daddy Kona Coffee conducts tours at 9 AM and 1 PM daily by reservation, walking visitors through their 32-acre certified organic farm at 1,400 feet elevation. Mountain Thunder Coffee Plantation grows coffee between 2,000 and 3,200 feet elevation, higher than most Kona farms, and processes tours hourly between 10 AM and 4 PM. The Kona Coffee Cultural Festival, running annually since 1970, spans 10 days in early November and includes cupping competitions, farm tours, and a picking competition where participants race to fill bags with ripe cherries.

Hilo Farmers Market operates year-round on the corner of Mamo Street and Kamehameha Avenue, opening Wednesday and Saturday from 6 AM to 4 PM with over 200 vendors, making it the largest regular farmers market in Hawaii by vendor count. Weekday markets on other days feature approximately 30 vendors. The covered pavilion structure shelters produce stalls, flower vendors, and prepared food booths selling plate lunches and local breakfast items. Orchids grown in Hilo's wet climate sell for 3 to 8 dollars per stem, with anthuriums priced at 2 to 5 dollars depending on color and size. Mountain apple, white pineapple, lilikoi, star fruit, dragonfruit, and rambutan appear seasonally alongside year-round staples including apple bananas, soursop, and breadfruit.

Papaya grown on the Big Island accounts for approximately 14 million pounds annually, representing nearly all commercial papaya production in Hawaii. The Rainbow variety, genetically modified to resist ringspot virus, dominates commercial cultivation since the virus devastated non-resistant crops in the 1990s. Papayas weighing between 1 and 2 pounds sell for 2 to 4 dollars at farmers markets. Avocados grown on the island include Sharwil, Malama, and Yamagata varieties, with harvest seasons staggered from May through February depending on variety and elevation. Macadamia nuts, introduced to Hawaii in 1881, grow across approximately 17,000 acres on the Big Island, primarily on the windward slopes. Raw in-shell nuts sell for 6 to 10 dollars per pound at markets, while roasted kernels range from 18 to 25 dollars per pound.

Keaau Village Farmers Market opens Sunday mornings from 7 AM to noon at the Keaau Village parking lot on Highway 11, featuring 30 to 40 vendors selling produce, baked goods, and craft items. Waimea Homestead Farmers Market operates Saturday mornings from 7 AM to noon at the Waimea Middle School parking area, drawing vendors from the north side of the island. Kailua Village Farmers Market runs Wednesday through Sunday from 7 AM to 4 PM at the Ali'i Gardens Marketplace in Kailua-Kona, occupying an open-air structure with permanent vendor stalls. The Wednesday market typically hosts 30 vendors, expanding to approximately 50 on weekends.

Taro cultivation for poi production continues on approximately 400 acres across the Big Island, concentrated in Waipio Valley and lower Puna. Fresh poi, the pounded taro paste that serves as a traditional staple, sells for 8 to 12 dollars per pound at farmers markets, labeled by sourness level: one-day poi remains sweet, two-day poi develops tang, three-day poi ferments noticeably. Breadfruit trees, which can produce 200 fruits annually when mature, grow throughout wet windward areas, with the softball-sized fruit sold at 2 to 4 dollars each. Growers harvest breadfruit at different stages: green and starchy for cooking like potatoes, or fully ripe and sweet for dessert preparations.

Coffee farms open to visitors cluster along the Kona Coffee Belt Road between mile markers 110 and 115 on Highway 11. Kona Joe Coffee operates a trellised coffee farm at 1,400 feet elevation, the only farm globally growing coffee on trellises rather than traditional bush form, conducting tours at 10 AM, noon, and 2 PM daily. The Kona Coffee Living History Farm, managed by the Kona Historical Society, preserves a 1920s-era Japanese immigrant coffee farm with original housing, processing equipment, and coffee trees, offering guided tours Tuesday through Thursday at 10 AM. Admission costs 20 dollars for adults.

The Hamakua Coast, stretching 50 miles from Hilo to Waipio Valley along Highway 19, supported large-scale sugarcane cultivation until the closure of Hamakua Sugar Company in 1994. Former cane fields converted to diversified agriculture now produce coffee, cacao, vanilla, and tropical fruit. Hawaiian Vanilla Company operates a farm in Paauilo growing vanilla orchids, conducting afternoon tours with tasting sessions priced at 40 dollars per person. Original Hawaiian Chocolate Factory, located between mile markers 12 and 13 on Highway 19, grows cacao and processes it into chocolate on-site, offering tours at 9 AM and 1 PM Wednesday through Saturday.

Kona Cloud Forest Sanctuary, a private reserve at 3,400 feet elevation on Mauna Loa's slopes, maintains 80 acres of high-elevation forest containing native koa and ohia trees, rare Hawaiian mints, and endemic bird species. Two-hour guided tours run Monday, Wednesday, and Friday mornings by reservation only, limited to 8 participants, costing 60 dollars per person. The sanctuary focuses on habitat restoration, having planted over 12,000 native plants since its establishment in 2008.

Hawi Farmers Market operates Saturday mornings from 8 AM to 1 PM in the parking lot of the historic Takata Store building in North Kohala, featuring 20 to 25 vendors selling produce from the Kohala district's farms. The market occupies one of the island's driest regions, where annual rainfall drops below 20 inches, requiring irrigation for most crops. Vendors at Hawi specialize in tomatoes, herbs, honey, and grass-fed beef from the ranches that dominate North Kohala's interior.

Puna produces approximately 70 percent of the island's cultivated agricultural output by value despite occupying less than 20 percent of farmland acreage. The district's fertile volcanic soil, high rainfall exceeding 150 inches annually in some areas, and warm temperatures support year-round cultivation. Lower Puna suffered significant agricultural losses during the 2018 eruption, with lava flows destroying an estimated 700 acres of active farmland along with papaya orchards, specialty crop farms, and macadamia groves.

Punalu'u Black Sand Beach, accessible via a turnoff near mile marker 56 on Highway 11, formed from basalt lava that shattered into fine particles upon contact with ocean water. Hawaiian green sea turtles, designated honu in Hawaiian, rest on the beach throughout the day, with counts typically ranging from 5 to 20 turtles visible at any time. Federal law and state regulations prohibit approaching within 10 feet of the turtles. The beach area includes coconut palms that drop coconuts year-round, with falling coconuts posing documented risk to visitors standing beneath trees.

South Point, designated Ka Lae in Hawaiian, marks the southernmost point of the Big Island and the southernmost point in the United States, located at 18 degrees 54 minutes north latitude. The cliffs at South Point rise 40 to 50 feet above the ocean, with fishermen installing permanent platforms and hoists for hauling catch up from boats below. Wind speeds at South Point regularly exceed 20 miles per hour, supporting the Pakini Nui wind farm's 14 turbines, which generate approximately 21 megawatts. The area receives less than 20 inches of rain annually, leaving the landscape dominated by grass and scattered kiawe trees.