Fine tune my Peloponnese itinerary

I like the first half of the trip and with 4 days in each location will give you enough time to explore nearby areas. I did however do 5 days in Gythio as it was a great base to explore the Mani, Mystras and Monemvasia and other locales.

In fact I've started one trip to the Peloponnese with the exact locations you mentioned then moved on to a small village of Petilidi to explore Messene, Koroni, Methoni, Pilos and a day trip up to the mountains.

I never made it to Olympia and beyond as you plan.

Yes, it does involve lots of driving but if you want to explore then you gotta drive.

You can read one of my trips reports on another forum with photos of 13 days in the Peloponnese:

https://www.tripadvisor.com/ShowTopic-g189483-i1277-k14200587-Peloponnese_Trip_Report_Sept_25_Oct_12-Peloponnese.html

I am in process of organizing a trip for next May so have not actually done the trip yet.

There is a choice between driving and moving and we are trying to find that sweet spot. We are planning on moving more than Tommy did but we haven’t actually done this trip.

With that in mind, I would not stay in Kalamata. We are going in the opposite direction as you but plan to visit Messene on our way from Pilos area to Kardamyli. I would think about moving your night in Kalamata to Kardamyli and consider moving one of your nights in Gytheio there as well. I think you would do less driving that way.

On a previous trip, we spent one night seeing Delphi and found that adequate so consider what you will do with more time. We took a tour about 5 pm of the site and then visited the museum the next morning. We left before noon. We thought the town of Delphi was perfectly fine for our purposes.