Bonegi I and II are two large Japanese freighter wrecks that were beached during WWII near Honiara. They are now fantastic and very accessible shore dives, with parts of the wrecks even breaking the surface. They are covered in coral and teeming with life.

Bonne Terre Mine in Missouri is a former lead mine that is now flooded with crystal-clear, spring-fed water. It's the world's largest freshwater dive resort, offering a unique adventure exploring the preserved underwater mining operation.

This Gili Meno site is named for a unique, large coral bommie that has grown into the shape of a bonsai tree. It's a beautiful and photogenic centerpiece on a healthy sloping reef that is also great for finding macro life.

Boo Windows is one of Misool's most iconic dive sites. The small rock island has two large, window-like swim-throughs that go completely through the rock in the shallow reef. The outside walls are covered in some of the most vibrant soft corals in Raja Ampat.

Booby High Shoals is a large submerged pinnacle that is a magnet for marine life. Its location between St. Kitts and Nevis means it's swept by currents, attracting sharks, rays, and large schools of fish.

Bradford Shoals is a large, current-swept pinnacle in Kimbe Bay that is a magnet for big fish. It's a thrilling dive for advanced divers, with huge schools of barracuda, jacks, and tuna, and a high chance of seeing sharks and rays.

The Brioni was an Italian passenger-cargo ship that sank in 1930. The wreck is a beautiful and historic technical dive, lying on its port side in deep water and remarkably well-preserved.

Brissare Rocks is a set of submerged granite pinnacles that is teeming with fish life. It's a beautiful dive with stunning topography and is a fantastic spot for seeing nurse sharks resting under the overhangs.

This WWII Bristol Beaufighter is a remarkably intact aircraft wreck that sits upright on the sandy seabed. It's a spectacular but deep technical dive, a must-do for qualified tech divers and wreck photographers.

Another fantastic WWII aircraft wreck, the Bristol Blenheim bomber lies in deep water off the coast. The wreck is largely intact, with its wings and engines still in place. A beautiful and poignant deep technical dive.

The Brothers Islands (Big Brother and Little Brother) are two remote pinnacles in the Egyptian Red Sea. They are famous for their stunning walls, two impressive wrecks, and, most notably, thrilling encounters with oceanic whitetip and hammerhead sharks.

Browning Pass, in the God's Pocket Provincial Park, is considered one of the best cold-water dives in the world. The nutrient-rich currents support an incredible density of life, with walls that are completely carpeted in a kaleidoscope of colorful invertebrates.

Bunaken Marine Park is famous for its spectacular wall diving. The deep trenches surrounding the island create sheer vertical walls that plunge into the abyss, covered in pristine hard corals, massive sponges, and an incredible number of green sea turtles.

Bunutan is a drift dive site in the Amed area known for its huge colony of garden eels covering a vast sandy slope. The dive continues over a healthy reef with large coral bommies, and the currents here can attract larger pelagics like barracuda and reef sharks.

The Busselton Jetty is one of the longest wooden jetties in the world and a fantastic temperate water dive. The hundreds of pylons are covered in a beautiful and colorful array of soft corals, sponges, and ascidians, creating a unique underwater forest.

Butler Bay is home to a collection of wrecks, including a large freighter (The Coakley Bay) and a NASA research vessel. It's a fantastic area for wreck lovers, with multiple sites to explore in a relatively small area.

Butler Bay is home to a collection of wrecks, including a large freighter (The Coakley Bay) and a NASA research vessel. It's a fantastic area for wreck lovers, with multiple sites to explore in a relatively small area.

Buyuk is a village on the north coast of Nusa Penida, and the dive site here is a classic, easy drift dive. A healthy, sloping reef runs the length of the coast, offering a relaxing dive with plenty of turtles and healthy coral to see.

A C-130 Hercules transport plane was scuttled in Aqaba to create a new artificial reef. The massive plane sits upright on the sand, and its cavernous cargo bay has been opened up to allow for very easy and safe penetration.

The C-53 is a former Mexican Navy minesweeper that was sunk as an artificial reef. It sits perfectly upright and has been well-prepared for divers, with large openings that make for safe and easy penetration.

The Cabbage Patch in the Somosomo Strait is named for its enormous, tiered plates of hard coral that resemble giant cabbages. It's a beautiful and unique sight on a gently sloping reef, making for a very easy and pretty dive.

Cabbage Tree Bay Aquatic Reserve, at Sydney's Shelly Beach, is one of Australia's best urban dives. It's an incredibly biodiverse and protected area, home to giant cuttlefish, weedy sea dragons, and a large, harmless school of dusky whaler sharks.

Cabilao Island is a quiet island near Bohol, offering fantastic diving away from the crowds. It's known for its beautiful walls, excellent macro life (including pygmy seahorses), and a chance to see schooling hammerheads at certain times of the year.