Hawaiian Walkways
- Hiking and walking tours: pictures, description, prices, and contact information.
- http://www.hawaiianwalkways.com/

Kealia Ranch
- Hunting and touring on the Kona Coast: pictures, rates, and contact information.
- http://www.kealiaranch.com/

Kula Kai Caverns
- Expedition information, pictures, links, and directions to this tour into 1000 year old lava tubes located in Ocean View.
- http://www.kulakaicaverns.com/

Kamanu Charters
- Sail and snorkel cruises to Pawai Bay. Detailed boat and trip information, small map of Honokohau Harbor, and pictures.
- http://www.kamanu.com/

Kona Cowboy
- Scenic horseback rides: pictures, trail descriptions and rates, pictures, horse introductions, and recipes.
- http://www.konacowboy.com/

Ocean Eco Tours
- Dive, surf, and kayak tours on the Kona Coast. Prices, pictures, and contact information.
- http://www.oceanecotours.com/

Waipio Valley Wagon Tours of Hawaii
- Contact information and pictures for these narrated wagon tours through Waipio Valley, featuring intimate views of the area's incredible beauty.
- http://www.waipiovalleywagontours.com/

Nautilus Dive Center
- Contact information and pictures for water sport equipment rental company, plus scuba instruction and charters in Hilo.
- http://www.nautilusdivehilo.com/

Fair Wind Cruises
- Snorkel, dive, and snuba tours to Kealakekua Bay on a large catamaran or small rafts. Scheduling, pricing, online reservation, trip information, and many pictures.
- http://www.fair-wind.com/

Hawaii Air Tours
- Pictures and online reservations plus pricing for Hilo, Kona, and volcano helicopter and airplane tours.
- http://www.hilowings.com/

Top of Waipio
- Horseback, 4x4, ATV, and hiking adventures in and around Waipio Valley. Small maps and online reservations available.
- http://www.topofwaipio.com/

Surf Lessons Hawaii
- Surfing lessons and surf tours by trained and certified lifeguards. Information about the vacations, instructors, lessons and pricing.
- http://www.surflessonshawaii.com/

Ocean Safari Kayak Adventures
- Kayak adventures on the Kona coast featuring rentals and guided tours with instruction. Pictures and tour information.
- http://www.oceansafariskayaks.com/

Suisan Company Fish Auction
- Watch the fishing boats bring in their catch to sell at auction early every morning in Hilo.
- http://www.suisan.com/market/auction.html

Snuba Big Island
- Similar to scuba diving, but with no certification necessary. Beach and boat dives available, pictures and explanation on the site.
- http://www.snubabigisland.com/

Hawaii Volcanoes National Park
- The official site about the most popular destination on the Big Island. Detailed volcano safety and park attraction information.
- http://www.nps.gov/havo/home.htm

Mauna Kea Summit Adventures
- Educational and photographic tours to the top of the mountain. Site includes pictures and many links to related sites.
- http://www.maunakea.com/

Mokulele Flight Service
- Small plane circle island tours and specific popular destination tours, like Akaka Falls.
- http://www.mokulele.com/

Flumin Da Ditch and HMV Tours
- Kayak the historic Kohala Sugar Plantation irrigation ditch or tour rugged rainforest terrain in a military-type Humvee. View trip schedules and video clips.
- http://www.flumindaditch.com/

Kona Coast Divers
- Scuba and skin diving tours in Kailua-Kona plus a manta ray night dive. Area tourist information and pictures plus descriptions of the underwater life you may see.
- http://www.konacoastdivers.com/

Hawaii Forest and Trail
- Small group and private tours to remote areas, including volcanoes, rainforest, lava tube, and mule ride tours. Easy to understand volcanic geology information with pictures and monthly 'reading the land' essays.
- http://www.hawaii-forest.com/