History 1990 -

1990 May Rob Palmer penetrates 400 metres into Cheddar sump 3, passing a maximum depth of 58 metres.

1991 June The link between the Kingsdale system and King pot is made, passing under the Kingsdale valley to form one of the longest through dives in the world.

1994 March Ian Rolland dies in San Agustin sump of the Huautla cave system, Mexico

Readers will note that this section is not yet complete. Thank you.

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