sactophotog wrote:
On my trip to C.R. in late April, I will be staying in San Jose at the La Amistad.  I'd like to do a day trip 
to a Rainforest.   I am interested in a Boat ride as well as a Canopy walk . . . and maybe a Zip line. 
Any recommendations for a fairly close site?   Can it be a one day or must I stay overnight?   Also, can 
you recommend transportation.  If anybody is up for sharing a van, I'd be interested in that.   I'll be there 
from April 28th for about a week and a half. . .  
 
Sactophotog
Sactophotog,
You could do most of that in a day trip to Jaco.  We could stop off and do the Tarcoles River cruise which is about 2 hours and really a neat trip (
http://crocodilerivertour.com/).  Then on to Los Suenos Canopy Tour which will take a couple of hours (
http://www.canopyvistalossuenos.com/).  Then on to Jaco for a look around Cocal and the beach then back to San Jose.  Could probably even squeeze in a 2-3 hour ATV tour if we left early enough (
http://axrjaco.net/).
If you want a better experience, Arenal or Manuel Antonio would be my suggestions but both you'd need to stay at least one night.  Arenal has some great zip lines including a really good one on the way there (
http://www.sanluiscanopytour.com/).  Best boat ride in the country (IMHO) is the Canoe Negro Wildlife Preserve tour (
http://www.arenal.net/tour/Cano-Negro-w ... refuge.htm) but it's an almost all day thing.  For a real rainforest experience, do the tour from Arenal to Monteverde by boat/car or on horseback (
http://www.arenal.net/tour/monteverde.htm).  I personally like Arenal the best because it 1) isn't that hot and 2) the hot springs.  There are also other things to do like:
ATV Tour: 
http://www.arenal.net/tour/la-pradera-atv-tour/White water rafting on the Toro (
http://www.arenal.net/tour/toro-river/) or Balsa Rivers (
http://www.arenal.net/tour/balsa-river/)
Canyon rappelling: 
http://www.arenal.net/tour/pure-trek-costa-rica.htmFor just a boat ride from San Jose, always suggest the catamaran tour to Tortuga Island with Calypso Cruises.  
http://www.calypsocruises.com/And of course, I'd be more than happy to provide any transportation needs you might have...
Steve