I am training for a half marathon and was worried when I realized that my (scheduled) longest training run coincided with my vacation to Portugal. Despite my best intentions, I am just not disciplined enough to run more than a few miles on my own while on vacation, which is where Porto Running Tours and Sergio came to the rescue. I found Porto Running Tours on TripAdvisor and reserved a 17 km custom running tour a couple of weeks before my trip. Sergio was accommodating (fulfilled my request for a flat route and to take a walking break on the one hilly section), friendly, and knowledgeable (I learned interesting facts about Porto’s buildings and Portugal’s history). Sergio has excellent English and is passionate about running and his running tours. Not only did I complete my long training run feeling strong (Sergio’s pacing helped), but I also had an opportunity to see a part of Porto that I would not have otherwise visited. This was my first running tour, but it will definitely not be my last.