Tomaree Head, Boat Harbour, One Mile Beach and Birubi Point together make up the scenic ocean-facing string of beaches and headlands along the Tomaree Peninsula and toward Anna Bay at the southern entrance to Port Stephens, and while they are firmly part of the area's tourism and outdoor recreation identity, none of them functions as a dedicated scuba diving destination in published dive guides. Tomaree Head, with its well-known summit walking track and sweeping coastal views, has rocky platforms at its base that offer occasional calm-day snorkelling, while Boat Harbour is a small, genuinely sheltered cove that is the most consistently calm and swimmable of the group, making it the most realistic option for an easy shore snorkel or shallow dive among this cluster. One Mile Beach and Birubi Point, by contrast, are open surf beaches — beautiful and popular for swimming, surfing and, at Birubi, sandboarding on the adjacent Stockton sand dunes, but generally unsuitable for diving given their exposure and the genuine rip current risk in typical surf conditions.

Marine life at any of these spots, where diveable, reflects the general open-coast, low-relief sand-and-rock habitat typical of exposed ocean beaches rather than anything distinctive enough to draw dedicated dive traffic. This cluster is best understood as part of the broader Port Stephens tourism landscape — beaches to visit, walk and swim at — rather than as scuba dive sites in their own right, and visiting divers should direct their diving time to the area's genuine dive destinations (Fly Point, Halifax Park, the Port Stephens islands and Broughton Island) rather than expecting a serious dive experience here.

These sites run along Tomaree Peninsula's ocean side, on Shoal Bay Road and Gan Gan Road toward Anna Bay, all with beachfront or headland car parks. Tomaree Head has a formed walking track to its summit and rock platforms at its base; Boat Harbour is a small, sheltered cove with easy sand access; One Mile Beach and Birubi Point (near Anna Bay, at the start of the Stockton sand dunes) are open surf beaches best entered at their more sheltered northern or headland ends in calm conditions.

All of these sites face the open Tasman Sea and are genuine surf beaches — diveable or snorkelable only in calm, low-swell conditions, generally in the more sheltered corners (Boat Harbour's cove, the lee side of Tomaree Head) rather than the open beach faces. Rip currents are a real hazard on One Mile Beach and Birubi Point in typical surf conditions; check patrol flags and local advice before entering.

Choose the most sheltered available spot for the day's swell and wind direction — Boat Harbour's cove is usually the calmest option — and snorkel or shallow-dive the rock and sand margins; these are casual, exploratory outings rather than dives with a fixed plan or route.

No dedicated commercial dive trips to these ocean beaches; used informally by snorkellers, surfers and local divers on calm days.