洞穴系统
Piccaninnie Ponds Karst Wetlands
Published as 'more than 110 metres' for the deepest springs (state environment department); the park page describes the Chasm as over 100 m deep. Divers are limited to 36.5 m.
A spring-fed karst wetland near the Victorian border whose groundwater springs reach more than 110 metres deep. It is a Ramsar-listed wetland and a CDAA-rated dive site, but in-water activities have been suspended since an algae outbreak.
Piccaninnie Ponds is a coastal wetland about 32 km south-east of Mount Gambier, close to the Victorian border and the Southern Ocean. Groundwater rises under pressure through the limestone into a series of ponds; the dived part consists of a shallow, plant-filled First Pond, a deep fissure known as the Chasm, and an enclosed white limestone area called the Cathedral.
The main attraction for divers is exceptional water clarity combined with dense aquatic plants growing far below the surface. Diving is limited to CDAA members with the required rating, booked in one-hour slots through the state parks booking system and subject to a park depth limit.
The ponds were listed under the Ramsar Convention as a wetland of international importance in December 2012 and protect several nationally listed fish, crayfish and bird species. A park notice published in July 2024 suspended all diving and snorkelling while aquatic vegetation recovers from a filamentous algae outbreak; the park itself stays open to land-based visitors.
水况、水流与洪水
The ponds are fed by groundwater springs; the state environment department describes springs deeper than 110 metres and aquatic plants growing to about 15 metres below the surface in very clear water. The park service attributes the formation of the Chasm and Cathedral to fresh water rising under pressure and dissolving the limestone.
为何重要
Designated a Ramsar wetland on 2012-12-21 (mainly as waterfowl habitat), meeting five of the nine Ramsar criteria. The state environment department records seven nationally or internationally listed animal species, including Yarra pygmy perch, dwarf galaxias and Glenelg spiny freshwater crayfish, and describes the site as one of the few permanent freshwater wetlands left in the lower South East.
环境条件
The park service describes visibility as excellent and able to exceed 40 m. A filamentous algae outbreak has degraded vegetation, and the water has been closed to divers and snorkellers since the park notice of July 2024.
典型范围来自已发表资料，不代表当前实际状况。
入口与潜点
One public dive area within the conservation park (First Pond, the Chasm and the Cathedral). No other entrances are open to divers.
仅供方位参考，不可用于导航。空心圆点为大致位置。
本页所有信息及其来源 (9)
| 信息条目 | 状态 | 来源 |
|---|---|---|
| The wetland's groundwater springs reach more than 110 metres in depth.Stated as a lower bound. The park page describes the Chasm as a sinkhole over 100 m deep. | 已核实 | [1] |
| Piccaninnie Ponds Karst Wetlands was designated a Ramsar site on 21 December 2012 and covers the 862-hectare conservation park. | 已核实 | [1] |
| Aquatic vegetation grows to about 15 metres below the surface. | 已核实 | [1] |
| Underwater visibility is described by the park service as excellent and may exceed 40 m.Describes typical clarity before the algae outbreak, not current conditions. | 已核实 | [2] |
| Piccaninnie Ponds is closed to immersive water activities until further notice and permits for diving and snorkelling are not being issued, following a filamentous algae outbreak; the park remains open.Alert published 2024-07-11; the park page still showed the closure when viewed 2026-10-14. | 已核实 | [2] [3] |
| Divers must be current financial CDAA members rated at sinkhole category, dive with at least one and at most three other divers, stay above 36.5 m and dive only in the First Pond, the Chasm and the Cathedral.Rules as published on the park page; they apply when permits are being issued. | 已核实 | [2] |
| The CDAA site directory gives Piccaninnie Ponds (5L72) a Basic Cave rating with DEW as the land manager.'Sinkhole category' on the park page is older CDAA terminology. | 已核实 | [4] |
| Area coordinates are the mapped centre of the conservation park.Park-level point, not a dive entry. | 已核实 | [5] |
| Area coordinates are the mapped centre of the conservation park.Park-level point, not a dive entry. | 已核实 | [5] |
已核实：来自我们直接查阅的官方或主要来源。已报告：仅来自二手来源。来源存在冲突：注释中列出两种版本。可能已过时：我们找到的最新来源已有一定年代。
由我们根据上述来源以自己的文字整理撰写。 提交更正