Madison Blue Spring
Certified cave and cavern diving only: Florida State Parks diving rules [2] (No open water diving or free diving.). これらのカテゴリーは各認定スキームが定めたものであり、そのサイトで必要とされるトレーニングを示しています。
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.
環境
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.
コンディション
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.
公表資料からの一般的な範囲であり、現在のコンディションではありません。
設備
Temporary restrooms but no bathhouse or changing area; picnic tables, grills and a pavilion; parking (large RVs not recommended because turnaround space is limited).
他のエントランス（{n}） Madison Blue Spring cave system
方向確認用であり、ナビゲーション用ではありません。白抜きのドットはおおよその位置を示しています。
このページのすべての情報とその出典 (11)
| 情報 | ステータス | 出典 |
|---|---|---|
| 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. | 確認済み | [3] |
| The park is open to certified cave and cavern diving only; no open water diving or free diving. | 確認済み | [2] |
| The water temperature averages a consistent 72 degrees Fahrenheit. | 確認済み | [2] |
| Divers must sign in, dive with at least two divers, stay within their certification, not use DPVs and finish one hour before sunset. | 確認済み | [2] |
| Admission is $4 to $5 per vehicle and $2 for pedestrians, cyclists and extra passengers, paid by QR code.Read 2026-10-14. | 確認済み | [1] |
| The park is open 8 a.m. to sunset every day of the year.Read 2026-10-14. | 確認済み | [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. | 確認済み | [1] |
| Temporary restrooms are available but there is no bathhouse or changing area. | 確認済み | [2] |
| USGS lists Madison Blue Spring at latitude 30.480492. | 確認済み | [4] |
| USGS lists Madison Blue Spring at longitude -83.244311. | 確認済み | [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. | 確認済み | [1] [2] |
確認済み：直接開いた公式または一次情報源による記載。報告ベース：二次情報源のみによるもの。情報が競合：注釈に両方のバージョンを記載。最新情報でない可能性あり：確認できた最新の情報源が古い。
上記のソースをもとに、独自の言葉でまとめています。 修正を報告する