On most catamarans, entering the
saloon from the
cockpit is kinda like going from your patio into your
family room. Doesn't get much easier than that. Granted, you'll have to go down a few steps into the hulls to access the head(s) and sleeping cabins, and some designs have the
galley and nav station down in a
hull, as well.
The
Ranger 33 and
Newport 30 have pretty easy climbs from the saloon to the cockpit. And when you get down below 30' it's usually just a couple of steps.
A lot of the easier ones, though, won't have a bridge
deck to step over between the cockpit and saloon. While that makes it easier, it can invite problems if the vessel gets pooped (takes a wave over the transom that floods the cockpit.)
It can even sink a
boat if tons of
water fill the cockpit and wash into the
interior. I once read of a boat that sank in 30 seconds off
Puerto Rico while sailing without any washboards in place on a bright, sunny day.
TaoJones