Madison Blue Spring
Certified cave and cavern diving only: Florida State Parks diving rules [2] (No open water diving or free diving.). 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。
The headspring of Madison Blue Spring State Park; a large cave opening about 9 metres down in the pool is the main entrance to the cave system. Certified cavern and cave divers only.
The spring pool sits in a limestone basin on the Withlacoochee River, shaded by hardwoods and pines, and is one of the region's most popular swimming holes. About 30 feet (9 metres) below the surface, a large opening leads into an extensive underwater cave.
Florida State Parks allows only certified cavern and cave divers here. Divers sign in at the front of the main boardwalk to the spring, and the park reminds visitors that it can close for hours on busy weekends once it reaches capacity.
环境
Clear first-magnitude spring water at about 22°C year-round flowing from a large cave mouth; the pool is about 25 metres wide and 7.5 metres deep before the cave entrance.
环境条件
Constant temperature of about 72°F (22°C). The park often reaches capacity and closes temporarily between 10 a.m. and 3 p.m. on weekends and holidays. Effective 2026-10-13 the park listed itself as closed to swimming; that notice did not mention diving.
典型范围来自已发表资料，不代表当前实际状况。
设施
Temporary restrooms but no bathhouse or changing area; picnic tables, grills and a pavilion; parking (large RVs not recommended because turnaround space is limited).
通往该地点的其他入口 Madison Blue Spring cave system
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 (11)
| 信息条目 | 状态 | 来源 |
|---|---|---|
| A large opening about 30 feet below the pool surface is the main entrance to the cave system.30 ft is about 9.1 m; approximate. | 已核实 | [3] |
| The park is open to certified cave and cavern diving only; no open water diving or free diving. | 已核实 | [2] |
| The water temperature averages a consistent 72 degrees Fahrenheit. | 已核实 | [2] |
| Divers must sign in, dive with at least two divers, stay within their certification, not use DPVs and finish one hour before sunset. | 已核实 | [2] |
| Admission is $4 to $5 per vehicle and $2 for pedestrians, cyclists and extra passengers, paid by QR code.Read 2026-10-14. | 已核实 | [1] |
| The park is open 8 a.m. to sunset every day of the year.Read 2026-10-14. | 已核实 | [1] |
| The park experiences frequent capacity closures between 10 a.m. and 3 p.m. on weekends and holidays, and was listed as closed to swimming effective 2026-10-13.Swimming notice only; re-check. | 已核实 | [1] |
| Temporary restrooms are available but there is no bathhouse or changing area. | 已核实 | [2] |
| USGS lists Madison Blue Spring at latitude 30.480492. | 已核实 | [4] |
| USGS lists Madison Blue Spring at longitude -83.244311. | 已核实 | [4] |
| Park fees are paid by QR code and divers sign in on the diver sign-in form at the front edge of the main boardwalk to the spring. | 已核实 | [1] [2] |
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