Blue Iguana

Cayman Islands

The Design Response

A site-wide perimeter barrier was designed to close every entry point simultaneously. Fence geometry with overhang and fine mesh stops climbing and jumping. A continuous strip foundation blocks underground access. A cleared boundary zone allows regular monitoring and long-term maintenance.

The Outcome

Juvenile survival rates will be improved and the complex park ecosystem will gain meaningful protection, giving the blue iguana population stable conditions it needs to recover.

The Animal Brief

The blue iguana exists nowhere else on Earth. Endemic to Grand Cayman, this species has been pushed to the edge of survival by invasive predators — feral cats, dogs, and rats — that have devastated egg and juvenile populations over decades.

The Challenge

Predators were reaching the botanical garden site by climbing, jumping, and burrowing. Eggs and juveniles were being lost at a rate that threatened the population’s future. The existing boundary was not built to stop them, and the botanical park ecosystem was at risk.