Bull Run

The Bull Run Experience

Divers position themselves on a sandy bottom while professional staff deploy bait to attract sharks into the area. Bull sharks — thick-bodied predators reaching up to 11 feet — are the main attraction, but Caribbean reef sharks, blacktip reef sharks, nurse sharks, and lemon sharks frequently join the feeding.

The shallow depth allows extended bottom times, often exceeding 45 minutes. Most encounters involve multiple sharks circling within arm's reach, creating intense but managed interactions unlike anything on a conventional dive.

Safety and Protocols

Bull Run operates under strict safety protocols developed over years of shark diving experience. Divers remain stationary on the bottom while staff control the bait and manage shark positioning. Briefings cover proper behavior, positioning, and what to expect.

Some operators offer cage options for divers who prefer an additional barrier, though most participants dive without cages. The shallow water allows rapid ascent if needed, and experienced divemasters monitor shark behavior throughout the dive.

Seasonality and Conditions

Bull shark season runs from December through March, with January and February typically offering the highest concentrations. The sharks follow migration patterns tied to water temperature and prey availability, making winter the optimal window.

Outside peak season, reef sharks and nurse sharks remain present, though bull shark sightings become less reliable. Water temperature during season ranges from 72 to 76 degrees Fahrenheit — a 5mm wetsuit with hood and gloves is standard equipment.

Understanding Bull Shark Biology

Bull sharks rank among the most powerful shark species, with thick bodies built for ambush predation in coastal waters. Adults typically reach 7 to 11 feet in length, though the largest individuals encountered at Bull Run can approach the upper end of this range. Their distinctive blunt snout and small eyes distinguish them from the more streamlined Caribbean reef sharks that often accompany them.

What makes bull sharks particularly noteworthy is their tolerance for brackish and even fresh water. They can regulate their internal salt balance to move between ocean and river environments, a physiological adaptation unique among large sharks. At Bimini, they congregate in winter months when water temperatures and prey movements make the area favorable for feeding and mating.

The Dive Site Environment

Bull Run lies on a sandy bottom interspersed with scattered coral heads, algae patches, and natural channels that create a maze-like underwater landscape. Depth ranges from 35 to 60 feet depending on the specific location within the site, with most encounters occurring in the shallower portions where visibility and lighting favor both sharks and photographers.

Visibility averages around 20 meters but can vary with weather and current conditions. The site features swim-throughs and overhead sections formed by coral formations, adding environmental complexity that requires attention beyond the sharks themselves. Light to moderate currents are typical, though conditions can shift with tides and weather systems.

Cage Diving Option

For participants who prefer additional protection or lack scuba certification, Bull Run offers cage diving with surface-supplied air. The floating shark cage allows non-divers to observe the feeding activity from a secured position while breathing through a hookah system connected to surface air supply.

This 20-minute cage experience costs approximately $875, with a $375 option for topside observers who remain on the boat. No dive certification is required, making this one of the few ways for non-certified individuals to witness bull shark behavior up close. The cage experience is particularly appealing for photographers seeking steady positioning and protection while capturing images.

Behavioral Observations and Photography

Bull sharks at this site display characteristic feeding behavior that differs from the more cautious approach of reef sharks. They tend to make direct passes, using their bulk and power rather than circling extensively. Experienced dive staff read these behavioral cues constantly, adjusting bait positioning to maintain predictable shark movements.

For photographers, the shallow depth provides excellent natural lighting throughout most dive times. Wide-angle lenses capture the full drama of multiple sharks converging, while the sandy bottom creates clean negative space behind subjects. Strobes help fill shadows on overcast days but are not essential given the typical visibility and depth. The extended bottom time possible at this depth allows shooters to wait for optimal moments rather than rushing compositions.

Getting there

Bull Run operates from the Bimini Big Game Club Resort and Marina, with boats departing from the dock at Neal Watson's Bimini Scuba Center. The dive site is a short 10 to 15 minute boat ride from the marina. Advance booking is essential during peak season, and weather conditions may cause postponements.

Frequently asked questions

Is the Bull Run shark dive safe?

The dive operates under strict safety protocols developed over many years of shark diving experience. Divers remain stationary while professional staff manage bait and shark positioning. The shallow depth allows rapid ascent if needed, and experienced divemasters monitor behavior throughout.

What certification do I need for Bull Run?

Open Water certification is the minimum requirement. Divers should be comfortable in current and able to maintain neutral buoyancy on a sandy bottom. Recent diving experience is recommended — this is not an ideal dive for those returning after a long break.

When is the best time to dive Bull Run?

Bull shark season runs from December through March, with January and February typically offering the most reliable encounters. The sharks migrate through Bimini waters following predictable seasonal patterns.

Can non-divers experience the Bull Run shark dive?

Yes. A cage diving option uses surface-supplied hookah air, allowing non-certified participants to observe bull sharks from a floating cage for approximately 20 minutes. No dive experience is required, only reasonable physical health and comfort in water. The cage experience costs around $875.

How big do the bull sharks at Bull Run get?

Bull sharks at this site typically range from 7 to 11 feet in length, with some individuals approaching the larger end of this range. Their thick, muscular bodies make them appear even more substantial underwater. They are noticeably more powerful than the Caribbean reef sharks that often accompany them.

What is the visibility like at Bull Run?

Visibility averages around 20 meters but varies with weather and current conditions. The sandy bottom can reduce visibility temporarily if sharks or divers disturb sediment. Clear conditions are most common during calm weather and slack current periods.