The Nature Commission organises and runs an annual BioBlitz with the help of experts from local and other environmental organisations, such as La Société Guernesiaise. The 2024 BioBlitz was the Nature Commission's first, held at Bordeaux. The 2025 BioBlitz was held at L'Ancresse East.
Biological records are collected across marine, terrestrial, and freshwater if relevant. The records are submitted to iRecord, and are made available through the Guernsey Biological Records Centre in due course.