| 1997/12/27-30 | SRT,Cave Rescue Trainig | SRT and Cave rescue training on Gujyo-Hachiman , Gifu pref. |
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| 1997/12/31-1998/1/4 | Cave rescue training course | We participate as instructor on Akiyoshi-dai Yamaguchi pref. |
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| 1998/1/26-2/1 | Fun Caving in Mulu , Malaysia | Fun Caving in Mulu National Park |
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| 1998/2/28-3/1,3/7-8 | Cave rescue training course | We participate as instructor on Taga-tyo , Shiga pref. |
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| 1998/4/30-5/5 | Fun Caving in Atetsu-dai , Okayama pref. | Co-actovity in Atetsu-dai |
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| 1998/5/3-4 | Survey in Okubo-no-Kazeana | Co-investigation with Abukuma Cavers Club |
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| 1998/5/30-31 | Cave rescue training course | training on Okutama , Tokyo pref. |
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| 1998/6/6 | Yumiiduka-hyoketsu | Lava ice cave explore |
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| 1998/7/4-5 | SRT experience course | organized SRT for begginer |
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| 1998/7/10 | Irimizu limestone cave and Abukuma Cave | Fun Caving |
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| 1998/7/17-19 | Cave festival Mt Fuji | Organized by Speleological Societyof Japan |
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| 1998/7/30-8/4 | Survey of Koike no Ana | Cave survey in Koike-no-ana Kagoshima pref. with Speleological Survey Group of Yamaguchi University |
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| 1998/8/19-20 | Cave meeting of Yamaguchi Caving Club | Akiyoshi-dai Yamaguchi pref. |
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| 1998/9/26 | Ishifunazawa syonyudo | Pionner caving club organized cave survey activity |
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| 1998/10/3-4 | Advanced SRT training in Okubo-no-kazeana | Lecture advanced SRT for Kyori univ. student |
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| 1998/10/31-11/4 | Uchimagi cave | Investigation of Uchimaki-cave |
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| 1998/11/28 | Cave rescue self training | On rope rescue |
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| 1998/12/12 | Cave rescue training course | We participate as instructor on Okutama, Tokyo pref. |
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| 1998/12/25-1999/1/2 | SRT training in Akiyoshi-dai | Lacture SRT for some univ students. |
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| 1999/2/12-19 | Fun Caving in Mulu , Malaysia | Fun Caving in Mulu National Park.We went Cear Water Cave , Sarawak Chamber, etc. |
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| 1999/2/27 | Investigation of underwater on Hirao-dai | Investigation of some caves(Senbutsu-do,Ojika-do,etc) on Hirao-dai , Fukuoka pref. |
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| 1999/2/28 | Investigation of Daimyo-ana | Investigation of Daimyo cave on Akiyoshi-dai Yamaguchi pref |
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| 1999/3/20-25 | Uchimagi cave | Investigation of Uchimaki-cave |
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| 1999/3/25-26 | reconnoiter Ryusen-do | We reconnoiter on Ryusen-do Iwate pref. for explore Cave dive and remove old ladder. |
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| 1999/3/28 | SRT training | |
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| 1999/4/17-18 | Cave rescue training course | Cave Rescue training on Okutama-tyo by Cave Rescue Commitee See SSJ web Page |
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| 1999/4/29-5/5 | Cave rescue training course | Cave Rescue training on Akiyoshi-dai by Cave Rescue Commitee See SSJ web Page |
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| 1999/5/4 | Survey in Okubo-no-Kazeana | Co-investigation with Abukuma Cavers Club |
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| 1999/5/22 | Lava tube around Mt.Fuji. | We showed Mr.Joel Raimbourg(French Speleo) round the lava tubu around Mt.Fuji. |
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| 1999/5/29-30 | Cave rescue training course | Cave Rescue training on Okutama-tyo by Cave Rescue Commitee |
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| 1999/6/19-20 | Cave rescue training course | Cave Rescue training on Hitachi-city by Cave Rescue Commitee |
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| 1999/6/26-27 | CPR training | CPR training & Cave Rescue Demonstration on Chichibu-city by Cave Rescue Association |
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| 1999/7/3-4 | Fun caving for foreign caver | We guide for Dutch caver on the one vertival cave and two lava tubu. |
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| 1999/7/17 | Cave rescue training course | Cave Rescue training on Hitachi-city by Cave Rescue Commitee |
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| 1999/8/6-9 | 26th Speleological Society of Japan Conference | Akiyoshi-dai Yamaguchi pref. |
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| 1999/8/10-14 | Cave rescue training course | Cave Rescue training on Akiyoshi-dai Yamaguchi pref. by Cave Rescue Commitee |
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| 1999/9/11-12 | Cave survey | Survey of Hotoke-ana , Nanmoku-vil. Gunma pref. |
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| 1999/10/30-31 | Cave survey | Survey of Oinu-ana , Ueno-vil. Gunma pref. |
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