If you enjoy trail biking or hiking then you could take a couple hours out of your busy vacation schedule to use the Keuka Outlet Creek Trail. It runs between Penn Yan and Dresden along the Outlet Road. Only a small portion on the west end is paved; the rest is gravel and hardpack.
The trail is setup in aproximately 1mile, 2mile and 4mile sections. There is limited parking at the head of each section. There are way-stations with water fountains at various places along the route.
One caution is that the dirt sections are often muddy during the spring and early fall when the area is hit by frequent thunderstorms. The trail is remote in some sections so it is best to use the buddy system or better yet to go with a group.
See the accompanying map for the parking areas and the general trail layout.
See the website below for details.
Lakeside is a semi-private course that allows non-members to play at non-peak times of the year or week. You must call at least 24-hours ahead to get permission for a tee time. (Use the phone number given below).
It is a pretty expensive club; $45 for 18 holes and a cart (the hilliness of the course makes a cart almost a necessity).
The course is difficult with narrow fairways lined with mature trees. Bunkers, sandtraps and doglegs are placed on the course to increase the number of strokes per hole. Elevations change from tee to fairway to green which makes club selection difficult.
There are no water holes but you can see nice views of Keuka Lake from the elevated parts of the course.
The course is always well maintained. They even take several weeks in September each year to refurbish every hole as needed. (September is not the best month to try to golf here).
There is a fully-staffed and provisioned pro shop where you call to make reservations, buy balls and tees, talk to the pro about how to play the course or schedule lessons to improve your game. The new clubhouse is open to get a cold drink after your round of golf (the full dining area was open to members only).