Special Interest Groups
The Challenger Society has an active programme of meetings which we support. Special Interest Groups (SIGs) are one of the most important parts of the Society.
Join the Society
The website contains all information pertaining to the Challenger Society.
Some information is available only to registered members of the society. This includes some editions of Ocean Challenge and access to Challenger Wave.
To join us, please view the membership details in The Society section of the site.