海洞
Grotta del Bel Torrente
Cave dive (operator classification): operator zone [1] (Operator lists PADI Advanced Open Water Diver or equivalent as the required certification.). 以下分类采用该认证体系自身的命名方式，用于描述该潜点所需的培训级别。
A sea-entered cave dive in the Gulf of Orosei, about 30 minutes by boat from Cala Gonone, with an entrance at 8 m leading to a large tunnel and three air-filled chambers with formations.
Argonauta describes Bel Torrente as a cave dive whose entrance lies at 8 m, opening into a large tunnel that leads to the first of three air chambers decorated with rock formations. It gives a depth range of 8 to 14 m.
A July 2023 reader report in Undercurrent describes a shallow dive (about 6 m on the reviewer's computer) in which divers surface inside the cave and swim among stalactites and stalagmites in a large air pocket before leaving underwater, and says the operator checked certifications and logged dives before accepting divers.
ProTec Sardinia describes an entrance about 4 m in diameter lined with oysters and mussels, milky water at first and a halocline where fresh water flows out of the cave; after about 25 minutes divers are fully in clear fresh water, and after about 40 minutes the cave drops to around 21 m and continues.
环境
A flooded tunnel from the sea into air-filled chambers with formations.
环境条件
A halocline (the boundary between outflowing fresh water and sea water) blurs visibility near the entrance; inside, fresh water is described as crystal clear.
典型范围来自已发表资料，不代表当前实际状况。
本页所有信息及其来源 (8)
| 信息条目 | 状态 | 来源 |
|---|---|---|
| The entrance lies at 8 m depth. | 已报告 | [1] |
| The operator gives a depth range of 8 to 14 m. | 已报告 | [1] |
| The operator describes a large tunnel leading to the first of three air chambers. | 已报告 | [1] |
| The operator lists PADI Advanced Open Water Diver or equivalent.Operator requirement, not an official rule. | 已报告 | [1] |
| A July 2023 reader report gives a depth of 5.8 m, describes surfacing in a large air pocket among stalactites and stalagmites, and says the operator checked certifications and dive numbers beforehand. | 已报告 | [2] |
| No official access information was found. | 已报告 | [1] |
| Fresh water flowing out of the cave forms a halocline; after about 25 minutes divers are in clear fresh water. | 已报告 | [3] |
| After about 40 minutes the cave drops to about 21 m and continues.Deeper than the 14 m maximum given by Argonauta for its guided dive. | 已报告 | [3] |
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