I was f’g exhausted after my alta Guajira trip so parking myself in Barichara, a tiny little colonial village of 7k people in the mountains seemed like exactly what I needed. Getting there from remote Riohacha was a bit of an undertaking involving 2 flights, 2 buses & an overnight in San Gil but I made it. And then proceeded to do nothing but wander, sleep late, dine & go on hikes. There is one especially great hike on Camino Real, a stone path built ages ago for locals, that wanders to Guane, a town 10km down the mountain. While most folks opt to take the bus back to Barichara for USD50c, as the hike is primarily downhill to Guane, I opted to do the return hike back up to Barichara bc I’m weird & always prefer the uphill portion of hikes given the downhill is murderous on my worthless cartilage-free & arthritic-crazed left knee. I quickly discovered perhaps I downplayed the extent of the decline as I was too mesmerized by the gorgeous views but I got in a damn good workout & then promptly had a long late lunch to fill my belly & rest my now wobbly legs & knee. 
I doubt one can find a more picturesque colonial town so if you travel to Columbia, put Barichara on your list & perhaps settle for the one-way hike.