Chiang Rai
| Tham Ku Kaeo | CR0010 | 530 m / -10 m |
| Association Pyrénéenne de Spéléologie | 1986 | Grade UISv2 4-3-A |
| Tham Liang Pha | CR0008 | 75 m / -50 m |
| Shepton Mallet Caving Club | 2014 | Grade UISv2 6-3-F |
| Tham Luang | CR0003 | 10,733 m / 67 m |
| CMRCA/MCRO/SMCC/BEC/Unsworth/Walters et al. | 2014-2021 | Grade UISv2 6-3-BEF/4-3-A/2-3-A/1-1-A/LIDAR |
| Tham Pado | CR0009 | 100 m / -15 m |
| Shepton Mallet Caving Club | 2015 | Grade UISv2 2-3-F |
| Tham Pha Khong | CR0031 | 166 m / -4 m |
| Dean Smart et al. | 2003 | UISv2 Grade 4-3-F |
| Tham Pha Yao | CR0021 | 979 m / -43 m |
| M. Ellis, S. Subrahmanya, V. Unsworth & K. Khunngamkwamdee | 2020 | UISv2 Grade 6-3-EF |
| Tham Phaya Naak | CR0007 | 22 m / -6 m |
| Shepton Mallet Caving Club | 2014 | Grade UISv2 6-3-F |
| Tham Phum | CR0012 | 192 m / -2 m |
| Association Pyrénéenne de Spéléologie | 1987 | Grade UISv2 4-3-A |
| Tham Phra | CR0006 | 49 m / -7 m |
| Shepton Mallet Caving Club | 2014 | Grade UISv2 6-3-F |
| Tham Plaew Plong Fah | CR0015 | 54 m / -7 m |
| Shepton Mallet Caving Club | 2016 | Grade UISv2 4-3-F |
| Tham Sai Thong | CR0001 | 1,391 m / 77 m |
| Midlands CRO/Shepton Mallet Caving Club | 2019 | Grade UISv2 6-2-BEF |
| Tham Thao Chang | CR0009 | 16 m / -4 m |
| Shepton Mallet Caving Club | 2015 | Grade UISv2 2-3-F |