Just want to share a recent dive trip to SM, Colombia between 15-24 August '08. FYI, SM is on the northeast coast of Colombia, more like the Atlantic than the Caribbean.
Travellers who want to come in usually do so via Bogota first and then transit to SM (usually via Avianca or Aerorepublic, both reliable Colombian carriers....within reason).
The diving is actually done from Taganga, a small, grubby fishing village north of SM, and all boats head further north to the Tayrona National Park, where there is over 30 dive sites. Most sites were an approx. 10-15 min. relatively comfortable boat ride; however bring a hat, sunnies and cream, very few boats have top cover.
I should mention that i went in the 'wrong' time of the year when viz is not good and it rained ever afternoon after brilliant sunshine in the morning; no big drama, but according to the locals, January to March is the best time to go, although water is meant to be slightly colder.
I stayed at Rodadero, a small resort town, south of SM, which is packed with hotels, bars,etc...dived with a local girl, Natalie Pineda, a young marine biology student and PADI OWI. She
