There are two routes into the park,
The one you want to take is 180 into Sequoia
There is another one that goes to 3 Rivers - do not take that one; that is highway 198,
that one has so many twisty curves - and last time we had to drive it in the fog.
We once made the mistake of staying in 3 Rivers and thought it would be clsoe to the park - but that road is difficult driving even for us who love to go to the mountains frequently. Yeah - you could do it, but I figure it might turn more than just one of you into a scardy cat....
The other road will have some looks over the valley - but in general is a good road. The scaredy cat person might still have some issues - but its a whole lot better than 198.