Chumphon
| Tham Ai Tae | CP0057 | 258 m/-13 m |
| Shepton Mallet Caving Club | 2025 | Grade UISv2 6-3-EF |
| Tham Boran | CP0154 | 170 m/-8 m |
| Department of Mineral Resources | 2021 | Grade UISv2 4-3-F |
| Tham Chang Phueak | CP0070 | 181 m/-12 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-1-EF |
| Tham Chang Phueak 2 | CP0058 | 50 m/-3 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-1-EF |
| Tham Chang Phueak 3 | CP0059 | 71 m/-8 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-1-EF |
| Tham Chong Luk Gah | CP0172 | 50 m/-30 m |
| R. Gardner & P. Ashwell | 2024 | Grade UISv2 6-3-EF |
| Tham Khao Kriap | CP0034 | 80 m |
| John Dunkley | 1984 | Grade UISv2 2-2-A |
| Tham Khao Nam Thip | CP0012 | 150 m /-5 m |
| Association Pyrénéenne de Spéléologie | 1987 | Grade UISv2 2-2-A |
| Tham Khao Phlu | CP0025 | 58 m/-5 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Khao Phlu 3 | CP0121 | 39 m/-9 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Kuhlap | CP0155 | 107 m/-8 m |
| Department of Mineral Resources | 2021 | Grade UISv2 4-3-F |
| Tham Nam Lot | CP0024 | 319 m/-5 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Nam Lot Thep Nimit | CP0073 | 202 m/-25 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Nam Thip | CP0120 | 24 m/-1 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-2-EF |
| Tham Phet | CP0056 | 155 m/-22 m |
| Shepton Mallet Caving Club | 2025 | Grade UISv2 6-3-EF |
| Tham Phitsadan | CP0075 | 661 m/-32 m |
| Shepton Mallet Caving Club | 2024 | Grade UISv2 6-3-EF |
| Tham Phra Namo | CP0076 | 90 m/-4 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Rap Ro | CP0017 | 237 m/-19 m |
| Shepton Mallet Caving Club | 2025 | Grade UISv2 6-3-EF |
| Tham Sanook | CP0077 | 130 m/-3 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-EF |
| Tham Sanook 2 | CP0156 | 207 m/-9 m |
| Shepton Mallet Caving Club | 2020 | Grade UISv2 6-3-BEF |
| Tham Silawan | CP0078 | 302 m/-32 m |
| Shepton Mallet Caving Club | 2024 | Grade UISv2 6-3-EF |
| Tham Than Nam Lot Noi | CP0054 | 460 m /-11 m |
| Shepton Mallet Caving Club/Smart, Fanning & Borowsky | 1998/2024 | Grade UISv2 6-3-EF/2-2-A |
| Tham Than Nam Lot Yai | CP0013 | 1,915 m /-21 m |
| Department of Mineral Resources | 2021 | Grade UISv2 4-3-F |
| Tham Thip Prida | CP0098 | 333 m/-28 m |
| Shepton Mallet Caving Club | 2024 | Grade UISv2 6-3-BEF |