I've always preferred to have my toes covered, and wear something with more support than any type of open shoe when doing a lot of walking -- personal choice.Edited: 18 May 2018, 02:49
I recommend covered toes, too. Chacos are usually relatively heavy and don't have great traction in addition to exposing your toes. My preferred travel shoes are nylon Keen H2Os: lightweight, sturdy, supportive footbeds, toe protection, antimicrobial soles, great traction on slippery rocks, and you can throw them in the washing machine when you get home.
Many people like their toes covered and protected and that makes sense. However, I have hiked Xunantunich many times with Teva hiking sandals and they work fine. We have found that the Keen's have a defect and have split at the same place more than once for family and friends--so we have all switched the Teva version of the same shoes. All personal preference.
My daughter did Lamanai with her Chacos while the rest of us did closed toe Keens or Tevas. She ended up with some minor cuts and wished she had used her Keens.
I've been wearing Keens since the first pair I bought direct from the factory in 2004, thrilled to have a great white water rafting shoe that would protect my toes. They were so comfortable I started wearing them to work daily - running a learning center for kids with multiple disabilities, autism, and emotional issues - because they were cool, had great traction, protected my feet, I could run in them, and they could be thrown in the washing machine and come out like new. Unless some hard core trekking is involved, flipflops and Keens are the only footwear I pack when I travel (and I travel a lot). In 7 or 8 pairs and millions of steps I've never had one fail.
Also, Keen is a fabulous company with a very charitable culture. "In reaction to the 2004 Asian tsunami, KEEN joined the relief effort by pulling their entire $1M advertising budget and diverting it to disaster relief. This pivotal moment in KEEN's history has shaped a brand culture of giving back and doing the right thing."
So, yeah - will always be Keens for me. :-)