CISMAS - The Cornwall and Isles of Scilly Maritime Archaeology Society - was formed in 2004 to promote maritime archaeology in Cornwall and the Scillies. The society currently has over 100 members, about three quarters  of them divers. The first CISMAS project was a two year survey of the debris field around the wreck of HMS Colossus (1798) in the Isles of Scilly. Other projects undertaken include:

    • a maritime survey of Mount’s Bay in Cornwall
    • surveying the wreck of HMS Firebrand (1707)
    • a monitoring survey of HMS Colossus (1798)
    • excavation on HMS Colossus in 2012 & 2015
    • excavation in Tresco Channel in 2013
    • work on the wreck of the Royal Anne Galley (1721)
    • survey of the prehistoric inter-tidal archaeology of Samson Flats.

    LATEST 3D virtual tour of the protected wreck sites of Scilly

    See our 3D interactive models CISMAS on Sketchfab

    For details of CISMAS projects see the project page

    NEW Colossus dive trail update- download the report here

    See a diver’s eye view video of the Colossus Dive Trail here


    Projects for 2020

    • Investigation of the Wherrytown Mine
    • Survey in the Isles of Scilly