Remaining firmly within the realities of engineering and the limitations of fabrication, Gresham Yacht Design has developed a breath-taking concept called Hydrosphere. This bold and exciting idea immerses an owner and their guests into their surrounding ocean environment through the hull of a vessel.

With a capacity to sit up to seven guests at any one time, the Hydrosphere is a space in which to share magical moments and to get underwater quickly. The only other way to get this type of experience is to dive in a submersible. This takes time though — to get a sub ready to launch and into the water takes at least an hour, if not more. The Hydrosphere takes mere minutes to deploy, meaning that you don’t miss that fleeting moment when a beautiful sea creature swims past.

The Hydrosphere, which offers 360-degree views, can be operated at any time thanks to onboard lighting that help to illuminate the water. It can even be deployed when underway up to a maximum speed of two knots.

Safety is paramount with any ideas such as these, which is why the pressure shell of the Hydrosphere extends through the hull and the entrance down the stairs is above the waterline ensuring safe access and exit for guests. When not in use, the Hydrosphere is retracted into the hull, protected by an external hatch and parked above the waterline.