Tripp Martin is a great source of information. Unless things have changed in the past five years, and they may have, it is not an easy country to visit although it was one of our favourite stops in our circumnavigation
. You cannot anchor
where you like (in fact there are not many potential anchorages). Tripp has tandem moorings in a river that are very good and looked after. We left our boat there for a month or so and went backpacking in Ecuador and Peru
(highly recommended). Seems to me that there were only two places that you could go, other than Guayaquil, which is a dump anyway. You need an agent to arrange entry and exit. Tripp isn't (or wasn't) an official agent but still was able to do it. If you go from one port to the other you need an internal zarpe
which means more fees
Tripp's moorings, off his restaurant are in a river whose mouth is badly silted. You need to come in at high tide with a local pilot who follows a serpentine course. In all it is not the easiest place to visit, nor the cheapest, but well worth it if you want to do some land travel.