For one of your day hikes, take the Boronda Trail from Highway 1 to Timber Top. No poison oak, fabulous views, no people. If you decide to carry overnight gear, you would not regret camping at Timber Top. This is an up and back hike, but don't worry about not doing a loop - it's well worth repeating, and it will look different on your way back downhill.
Here's the info on the trail at Ventana Wild. You might want to read through the trail reports for some detailed suggestions. This is an old ranch road, and in places some of the junctions might be a bit confusing, as there are multiple ranch roads and/or deer paths. USFS doesn't have signs, so you'll need to find your way. Not hard if you have basic map and navigation skills, especially if you grab the gpx file and have a gps device.
Here's a link to the map, where you can download a gpx or kml file.
Finding the trailhead will be difficult if you're not familiar with the area, as it's just a pullout on Highway 1 that does not have a sign. Parking is on the east or west side of the highway, the trailhead is a green metal gate next to an old cattle loading chute. Use the gpx track from the above link to find the trailhead. If you don't have a gps device, you're looking for a place about 1/2 mile NW of the Torre Canyon Bridge - on the NE side of highway 1 there is an old cattle chute and green metal gate; there's space on either side of the highway for a couple cars to park.
Here's a google map link to the trailhead, where you can go into street view to see what it looks like. And here's detail of that shows the trailhead. I'm including lots of info because there are several different old ranch roads, and you want to start out on the right one.
And photos of the trail are in our gallery, the first and last legs of a three day trip. The Boronda Trail is shown in images 1 to 8, and 37 to 43.
When you get to Timber Top (an old burnt out USFS campsite), continue a few minutes further to reach the Old Coast Road, and walk a few minutes north or south on that road until you get views NE into the Big Sur mountain range.