- 1936 – The 30 acre campsite was purchased for £500 from Mr Brown.
- 1939 – The site was ploughed to help grow crops to feed the nation.
- 1945 – Belchamps is re-grassed ready for camping.
- 1949 – 1st Essex International Jamboree
- 1952 – The first brick building was built and the 2nd Essex International Jamboree was held.
- 1956 – 3rd Essex International Jamboree
- 1960 – 4th Essex International Jamboree
- 1964 – 5th Essex International Jamboree
- 1968 – 6th Essex International Jamboree
- 1972 – 7th Essex International Jamboree
- 1976 – 8th Essex International Jamboree
- 1980 – 9th and final Essex International Jamboree.

1964 – An aerial view of the 5th Essex International Jamboree