Oh yeah, there's a good bit of stuff to do there

Off the top of my head (and under the assumption that you'll be car camping):
1) If you're going to Big Sur for the first time, McWay Falls is a must. Iconic Big Sur scene, super easy walk out from parking lot. You can't actually get down to the cove and the falls (at least, you're not allowed), but you get a good view from up high along the hill. McWay Falls is across the parking lot at Julia Pfeiffer Burns SP. Parking is limited, so go early or it might take a bit of patience.
2) Pfeiffer Big Sur SP. There are a couple of cool things to do in Pfeiffer Big Sur SP (not to be confused with Julia Pfeiffer Burns SP). The first thing I would suggest is doing the Pfeiffer Falls loop trail, with the Valley View out&back extension. They're not utterly amazing hikes, but they give you a good feel of the redwoods and lush Big Sur-ness. It's an easy hike, and can get crowded because all the folks camping there do it. I wasn't that impressed with the Valley View Trail, but I was there in the afternoon, and I suspect if you planned it out such that you arrived around sunset it would be nicer.
Now, what I find more fun in Pfeiffer Big Sur, especially on hot days, is to scramble up the Big Sur River (short trail to river starts at end of the farthest campground loop). The river is clean and cool, the rocks are fun to clamber over, and a relatively short but fun scramble brings you to an awesome little swimming pool complete with a good rock from which to jump into the pool. Hopefully it's hasn't been too dry of a year, it's a lot more fun when the water's higher and the pool deeper. Although, the last time I was there, the water was low enough that it was possible to swim to and climb up the little river inlet and continue upriver. I'm sure there are other pools beyond that you could claim for yourself or only share with a few others (the big pool can get a little crowded for my tastes sometimes). We didn't get to try it that time, but next time we will.
3) Pfeiffer Beach. You can find this beach by turning off from CA1 onto Sycamore Canyon Rd, south 1mi from the entrance to Pfeiffer Big Sur SP. The narrow road is unmarked, so watch out for it. Follow the road to the end and you'll come to a parking lot, they do charge for parking there. The beach is beautiful. Not huge, but a nice little cove. I'd go earlier morning to have a beach a little more to yourselves and to maybe avoid the wind.
4) Esalen Hot Springs. The
Esalen Institute is quit an interesting place. You can read up on the history, but the most pertinent thing for us, is that they open their hot springs to public use between 1-3am.

You have make reservations in advance ($20 per person - good deal), and I think you're limited to a group of 4 or something like that. They only make 20 reservations a night, so be sure to call as soon as you know your plans. There's nothing more relaxing after a nice day of hiking, beaching, exploring, and camping than to sit and nap in dimly lit hot tubs on a bluff/cliff above the ocean. If you get the hot tubs outside, they have views of the shore below as well. It is late at night, so don't get wasted by the campfire

I think you have to show up at the gate at like 12 or 12:30, then they check everyone in and walk them down to the hot tubs. Bring a flashlight if it's a moonless night. It's swimwear optional in the hot tubs, and most folks went nude whenever I've gone, so be warned

The late night crowd tends to be on the younger side, so often there's nice scenery to respectfully appreciate....
5) Vicente Flat Trail. This trail starts across the road from Kirk Creek Campground (great campground!) and takes you up into Ventana Wilderness and Los Padres NF. The views, especially on a clear day, are pretty great. The first half a mile or so are pretty overgrown, and with a good bit of poison oak overhanging the trail too (I brought my machete when we went), but I like to think it keeps the riff raff away

Once you get past the overgrown section and start climbing, it opens up. Bring lots of water, it'll be dry and hot. Nice day hike with classic Big Sur coast views :thumbup:
6) Partington Cove Trail. This trail/road starts across the street from the Tan Bark Trail, look for a pull out at the start of a valley about 2mi north of Julia Pfeiffer Burns SP. The road down to the cove starts at a locked gate. Walk down the road and explore. There's a trail leading to the opposite side of where you come down, through a little tunnel. It takes you Partington Cove, which is a pretty little cove. They used to ship out Tanbark Oak from that cove, and you can find pieces of rusted metal from docking stuff (is my guess, I think the cove was used later too, during the construction of CA1) embedded in the rocks still. The trail following the creek up is short but nice for lunch in the shade or something. Partington is nice because you can usually get the place to yourself. It's small, but chill.
7) All kinds of beaches. Sand Dollar Beach is a nice big one, it's a nice beach to hang out on, swim, people watch. There are a few coves you can check out. At Jade Cove, you're allowed to harvest Jade (only below water line though, so you'd need to dive) and it gets much hype...but I wasn't that impressed by it. Lot of poison oak to get down to that cove. There are a whole bunch of bluff walks through Big Sur, just watch the ocean-side of the road as you're driving. I can't remember the names off the top of my head.
8) If you feel like driving or riding your bike, taking the 1 down south past Lucia, Gorda, and Ragged Point is a nice and enjoyable drive. If you go far enough, you can check out the Elephant Seals at the Piedras Blancas Colony and check out Hearst Castle (tours will cost you).
8) On the way down to Big Sur or back, I'd stop and check out Carmel-by-the-Sea (kinda cool just to walk around in), Point Lobos SR (sea lions and pretty coves), and Monterey Aquarium if you haven't been before.
If you want the mileage and climbing on the trails I mentioned above, let me know :thumbup:
There are things I haven't been able to do yet but am planning to do on future trips (just to present you with more options):
1) Ewoldsen Trail. The Ewoldsen Trail begins in Julia Pfeiffer Burns SP and is renowned as the nicest Big Sur trail. Unfortunately, it's been closed the past few years due to damage from the big wildfires in 2008. I think they were either making repairs to make the trail safe for people, or just letting the area recover without people tramping through. The trail starts right across street from McWay Falls, so, if it opens by the time you go there, it would make for a good day to hit both McWay falls and the Ewoldsen Trail. It should be open by late this summer or fall, according to the last estimates. I don't know if the scenery will be what it was since the fire ravaged the area, but perhaps nice meadows and stuff sprung up.
2) Tons of trails in Ventana Wilderness and Los Padres NF. There are trails that run through Ventana Wilderness and Los Padres NF that take you to backcountry camps for backpackers. I'd like to backpack that area sometime, but you could still dayhike a few of the places. I think many are accessible form the west/coast side of Ventana/LosPadres (via CA1) as well as the east (via Carmel Valley Rd or Arroyo Seco Rd). In particular, I'm looking to check out Stone Ridge Trail (you can get there by taking Vicente Flat Trail farther), Buckeye Trail and Salmon Creek Trails (in Silver Peak Wilderness, down past Gorda), and Pine Ridge Trail (start from ranger station at Pfeiffer Big Sur SP, you can take this trail out to Sykes Hot Springs). I'd also like to get to the top of Ventana Double Cone one of these days.
3) Andrew Molera coast loop. My gf camped there with some friends and said there's a nice bluff trail in Andrew Molera. It's nice 8 mi or so loop that was pretty chill and had nice coastal views.
Anyway, hopes this helps, let me know if I can help with anything else! :thumbup: