The first link that you provided (http://www.vocabulix.com/conjugation/Spanish-Verbs.html) takes me to the Spanish Verbs Page (Verb Module). This section is an online version of all the conjugated verbs.
We had time to walk around the waterfall but refrained from entering the little lake at the bottom. My fellow tourtakers were quiet nice and we spend a while just sitting in the grass near the water.
For quite a while we were considering to offer a downloadable version of Vocabulix. I could put a popup screen where it says: 'wanna download a Vocabulary Builder or continue with our online lessons?'. | 
