Take bug spray! We were over ran with mesquito when we visited. We also went through a tour company and our entrance fee was included in the tour cost, but if you choose to have a personal tour guide, you will have to pay extra - I was thinking it was $20 - but after the tour we realized , we could have taken the pamphlet and went on our own and learned as much. Plus there will be people offering to spray you with bug spray for $1 when you arrive as well -- don't fall for this --- I found my hand sanitizer worked well on keeping the mesquitos away better than the bug spray the others used.

We did this as part of a cruise line excursion - it's about an hour-long ride to the site, which they broke up with a stop at a beach with some interesting rock formations. I don't remember exact cost, but I felt safer than trying to catch a taxi and we got some good information about the history of the area on the way as well as a guided tour at the site.

Yes - well marked with an entrance and guard to help you to the site.

I am not sure if taxis would be waiting for you for at the ruins, but you can always make arrangements in advance with the tax driver who brought you. Most of the taxi drivers speak at least a little English and all take cash, pesos and I think credit cards as well.

There is a narrow road from the main guest into the site. It’s not super far, so I think you’ll be ok. Bring non drowsy Dramamine just in case? Google pressure points on your wrists, if works for some people.. Bring bug spray and spray under clothes, mosquitoes are so ridiculous they bite through clothing. 😬

The ruins are about a 45 minute drive away from the port. You can either book an excursion thru the cruise lines, hire a private driver for a couple of hours, or take a trip thru many available as you get off the ship.