The Great Egg Harbor Bay: Life on the “Back Bay”

While the vast blue Atlantic Ocean often takes the spotlight in Ocean City, locals will tell you that the “back bay” is the true core of the island’s recreation and ecology. Great Egg Harbor Bay, which separates the barrier island from New Jersey’s mainland, presents a peaceful contrast to the crashing waves of the beach. It features winding creeks, golden marshes, and tranquil waters that support the region’s rich biodiversity and serve as a playground for those who enjoy the calmer shoreline.

The Ecosystem: A Cradle of Life

Great Egg Harbor Bay is much more than just a body of water; it ranks among the most productive ecosystems globally. Its extensive salt marshes and wetlands act as a “nursery” for the Atlantic.¹ These nutrient-dense habitats offer shelter for larval stages of many species, such as blue crabs, summer flounder, and striped bass, with roots of smooth cordgrass and salt-meadow hay providing crucial cover.

Exploring the bay at low tide uncovers a hidden realm of tide pools and mudflats. In this environment, diamondback terrapins—the sole turtle species in North America that inhabits brackish water—are frequently observed basking or nesting along the sandy edges.

The sky over the bay is just as lively, with marshes serving as prime hunting areas for Ospreys, who construct large stick nests on elevated platforms across the wetlands. This varied life cycle maintains a delicate balance, where each blade of marsh grass filters the water and supports the foundation of the coastal food web.

Recreational Hub: From Crabbing to Sunsets

For residents and visitors in Ocean City, the bay side provides a wide range of recreational activities that cannot be found on the ocean side.

• Crabbing is perhaps the most iconic activity by the bay, involving catching Atlantic Blue Crab. Whether you’re “chicken-necking” with a string and hand-line from a public pier or using commercial traps from a rental boat, the bay offers a rich catch that has supported family dinners for generations.
• Paddleboarding and kayaking are perfect activities in Great Egg Harbor Bay, a sanctuary for non-motorized water sports. The calm, shallow lagoons and narrow channels weaving through sedge islands create an ideal environment for these activities. You can quietly glide over the water, observing schools of minnows dart beneath your board while steering clear of the larger waves of the open ocean.
• Sunset Views: As the sun rises over the Atlantic, it sets over the bay, making sunset a daily spectacle in Ocean City. The bay side provides an unobstructed view of the horizon, where the sky shifts into rich shades of orange, purple, and gold. Locations like the 9th Street Bridge or the docks at the end of residential streets become popular spots for photographers and couples seeking a peaceful end to their day.

The Intracoastal Waterway: A Maritime Highway

The Great Egg Harbor Bay is also crucial for industry and navigation as part of the Intracoastal Waterway (ICW). This 3,000-mile inland water route stretches from Boston to Florida’s south end, offering a sheltered passage for both commercial and recreational ships to steer clear of open ocean dangers.

In Ocean City, the ICW acts as a bustling “highway” of activity. During summer, an endless stream of yachts, sailboats, and fishing boats move through the clearly marked channels. This waterway fuels local marinas and bait shops, linking Ocean City to the broader maritime world. Sitting on a bay-front deck to watch a 60-foot sportfishing boat set out toward the inlet offers a special moment, as its captain steers through the same waters once used by whalers and early settlers centuries ago.

Environmental Challenges: Protecting the Wetlands

Despite its scenic beauty and practical use, the Great Egg Harbor Bay encounters serious environmental issues. Ocean City, being a predominantly residential and ‘dry’ town, consistently addresses the effects of human activities on the bay’s water quality. Runoff containing fertilizers, pet waste, and street debris can lead to increased nitrogen levels and harmful algal blooms, which reduce oxygen levels and threaten marine ecosystems.

Furthermore, preserving the wetlands is a constant battle against the “hard” bulkheading of the shoreline. As sea levels rise, the marshes need space to migrate inland; however, with houses and roads in the way, the wetlands can be “squeezed” and disappear. Community initiatives and state-led conservation projects increasingly focus on “living shorelines”—using natural materials such as oyster shells and marsh grasses to protect the coast while maintaining the bay’s ecological health.³ Preserving the Great Egg Harbor Bay is not just an environmental goal; it is a necessity for maintaining property values and the quality of life that define the island.

The “back bay” may not have the thunderous applause of the Atlantic surf, but it possesses a quiet, enduring power. It is a place of nursery and refuge, of labor and leisure. For those who take the time to explore Great Egg Harbor Bay, they find a side of Ocean City that is wild, welcoming, and absolutely essential.