Hi Hannah, The easiest thing would probably be to drop off the car in Sierpe, take the water taxi to Drake Bay, and then take a small plane from Drake directly to San Jose afterwards. June is the off-season so flights are a little cheaper then (as low as $44)- check out NatureAir or Sansa for flights. There are a couple of rental car companies where you can do drop offs in Sierpe; just be sure when picking a company that they offer that service. 3 we know of are National, Toyota Rent a Car, and Alamo (UPDATE 4/1/2016: Adobe Rent a Car, the company we get a discount through, now allows drop offs in Sierpe as well). You could take the bus back like you suggest but it is a really long trip (around 10 hrs. I believe). Shuttles are available from Sierpe too, but again it’s a really long trip if you drive (around 7-8 hrs.). If you don’t mind flying, it will save you a ton of time and is actually really cool. The views are beautiful! Make sure to check out our new post on Drake Bay before you leave too: https://www.twoweeksincostarica.com/drake-bay-costa-rica/. Lots of info on there on activities, hotels, and restaurants.