Sorry, not a design feature of the boat but a couple of 'self-designed' things.
I am sure someone has done it before and I have just re-invented the wheel
I got lockable 'crim safe' insect screens (with cat flap on one) made to the same dimensions as the washboards. Perfect ventilation and as secure as we can get when we leave the boat locked up.
I also got made a dodger
frame built to cover the whole cockpit
and as I couldn/t afford a hard dodger
built, I sourced 2mm thick sheet of gel coated fibreglass ( the same stuff as they make refrigerated truck bodies out of) and got the dodger maker to make up a poly windscreen and vinyl sides & back with clears. We can keep the sun or the wind
or the spray/rain out or open it all up and have good ventilation. It feels like a spray dodger, looks a bit like a Pope-mobile but it works.