Longest caves in Thailand

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The longest caves list is updated to 28 November 2021. It has all the caves that have been surveyed to a length of over 1,000m.
 


No. Name Province Length Surveyors Date
1 Tham Phra Wang Daeng Phitsanulok 13,789m RFD/CSS/OCC/SMCC 1997-2004
2 Tham Lom-Tham Nam System Chiang Mai 13,541m SpeleoDAO expeditions 2015-2020
3 Tham Mae Lana Mae Hong Son 12,720m Australian expeditions 1986-1992
4 Tham Luang Nang Non Chiang Rai 11,207m CMRCA/CRCC/MCRA/SMCC/BEC 2014-2021
5 Tham Yai Nam Nao Phetchabun 10,597m SMCC 2004-2014
6 Tham Nam Lang Mae Hong Son 8,950m Australian expeditions/D. Smart et al. 1986-1993
7 Tham Takobi Tak 7,346m SMCC 2000-2003
8 Tham Krachaeng Yala 5,633m l. Price et al. 1993-2000
9 Tham Nam Wang Si Thamma Sokarat Nakhon Si Thammarat 5,400m P. Ashwell et al. 2011-2014
10 Tham Chiang Dao Chiang Mai 5,170m APS 1985
11 Tham Pha Phueng Nan 4,750m SMCC 2005-2014
12 Tham Pung Hung Mae Hong Son 4,566m Australian expeditions 1990
13 Tham Ban Nam Mut Kanchanaburi 4,161m CSCA 1992
14 Tham Pha Mon Mae Hong Son 4,050m APS 1985
15 Tham Khang Khao Phitsanulok 4,022m RFD/CSS/SMCC/OCC 2003-2018
16 Tham Le Stegodon Satun/Trang 3,389m Department of Mineral Resources 2017
17 Tham Nok Nang En Kanchanaburi 3,232m GSSS 1988
18 Tham Sua/Tham Lom Mae Hong Son 3,075m D. Smart et al. 1993
19 Tham Phra Sai Ngam Phitsanulok 3,026m RFD/CSS/SMCC 1997-2018
20 Tham La-ong Nan 2,969m Khun Sathan National Park 2019
21 Tham Nam Mut Kanchanaburi 2,938m CSCA 1992
22 Tham Phu Khieo Chaiyaphum 2,866m D. Checkley et al. 1989
23 Tham Pha Daeng Chiang Mai 2,821m SMCC/CMRCA 2013/2020
24 Tham Nam Tok Kanchanaburi 2,710m CSS 1996
25 Tham Susa Mae Hong Son 2,646m Australian expeditions 1992
26 Tham Loe Pu Tak 2,625m SMCC 2002
27 Tham Maa/Tham Yang Nan 2,371m SMCC/Harper & Unsworth 2016-2018
28 Tham Kleab Yai Chiang Mai 2,190m APS 1988
29 Tham Nam Dan Phitsanulok 2,137m RFD/CSS/SMCC/OCC 2002-2004
30 Tham Plup Pla Ta Yom Surat Thani 2,110m Thailand International Caving Expedition 2020
31 Tham Lumphini Suan Hin Saraburi 2,019m TCKG/SMCC 1998/2003
32 Tham Thewada Krabi 2,018m SMCC 2013
33 Cave NA0122/NA0135 Nan 1,929m SMCC 2014
34 Tham Ki Mi Chiang Mai 1,913m Alpinistyczny Klub Eksploracyjny w Sopocie 1987
35 Tham Than Lot Tak 1,877m RFD/OCC 1998
36 Tham Ya Wua Yai/Tham Phet Phang Nga 1,876m APS/RFD 1987
37 Tham Hued/Tham Christmas Mae Hong Son 1,840m APS/M. Foakes 1988/1998
38 Tham Sila Tiab Surat Thani 1,825m Thailand International Caving Expedition 2020
39 Tham Huai Tong Thai Kanchanaburi 1,819m RFD/CSS/CSCA/TVCC 2004
40 Tham Nam Ru Hua Koa Mae Hong Son 1,806m APS/Australian expeditions 1986
41 Tham Mae Pla Ao Chiang Mai 1,762m Thailand Karst Hydrologic Survey & V. Zeitoun et al. 1984-2008
42 Tham Huai Kun Mae Hong Son 1,747m Australian expeditions 1986
43 Tham Pakarang/Tham Hoo Yai Mae Hong Son 1,741m MCRO/Australian expeditions 1988-90/2019
44 Tham Hong Nakhon Si Thammarat 1,730m P. Ashwell et al. 2012-14
45 Tham Tab Tao Chiang Mai 1,685m SMCC 2003
46 Tham Lod Mae Hong Son 1,666m Australian expeditions 1983
47 Tham Huai Chi Laeng Chaiyaphum 1,602m D. Checkley et al. 1989
48 Tham Phu Pha Phet/Tham Khong Kha Lot Phattalung 1,599m RFD/ACG 2001-2002
49 Tham Pha Ngam Lampang 1,578m SMCC 2009-2012
50 Tham Lek Lek Krabi 1,535m Krabi Family Expedition 2016-2020
51 Tham Racha Phuttha Phang Nga 1,504m SMCC 2010-2012
52 Tham Mae Usu Tak 1,495m SMCC 2003
53 Tham Wiang Fah Chiang Mai 1,414m CMRCA 2020
54 Tham Ruea Phitsanulok 1,408m RFD/OCC 2003
55 Tham Nam Tok Mae Hong Son 1,405m Australian expeditions 1986
56 Tham Sai Thong Chiang Rai 1,391m MCRO/SMCC 2019
57 Tham Duean/Tham Dao Phitsanulok 1,382m RFD/CSS 1997
58 Tham Pang Kham Mae Hong Son 1,370m Australian expeditions 1986
59 Tham Nam Phra Tat Kanchanaburi 1,332m NZSS 1992
60 Tham Than Nam Lot Yai Chumphon 1,295m APS/DMR 1988/2021
61 Tham Pha Daeng Mae Hong Son 1,294m Australian expeditions 1988
62 Tham Phaya Naak Phetchabun 1,285m SMCC 2003-2006
63 Tham Hub Pha Khao Chiang Mai 1,254m SMCC/CMRCA 2020
64 Tham Tapan Phang Nga 1,250m Australian expeditions 1986
65 Tham Pha Kaeo Phitsanulok 1,217m RFD/OCC 2004
66 Tham Tukatan Chiang Mai 1,211m A. Seveau/J. Kelly/SMCC 2008-2019
67 Tham Nam Hu Mae Hong Son 1,201m Pang Mapha Cave Project 1999
68 Tham Phung Chang Phang Nga 1,150m APS 1988
69 Tham Mor Tak 1,135m RFD 1999
70 Tham Sao Hin Kanchanaburi 1,130m Australian expeditons 1990
71 Tham Pla Surat Thani 1,103m BEC 1998
72 Tham Chao Ram Sukhothai 1,091m RFD/CSS 1996-1997
73 Tham Krata Lamphun 1,057m BEC 2001
= Tham Yai Nakarat/Tham Kai Phisanulok 1,057m SMCC 2019
75 Tham Khun Huai Tum Lek Phitsanulok 1,035m D. Smart & I. Hollis 2004
76 Tham Nong Lai Surat Thani 1,032m Thailand International Caving Expedition 2020
77 Tham Pha Thai Lampang 1,025m CMRCA 2020
78 Tham Mae Usa Tak 1,019m SMCC 2003