Panos,
Was an awesome host. Reached out to him regarding the Sunset Cave and as it was low season when all the building is happening in Santorini so alot quieter and few restaurants open but lots of donkeys he advised us to move to his other spot called the Volcano Cave. It was beautiful, clean and he greeted us on arrival organised a transfer from the airport and helped with transfers to other restaurants on the island. Oia on santorini is a drive from the other villages/ towns on santorini. During low season there weren't alot of places open but we ate at Roka which was delicious and would recommend. Panos also kindly booked us up Metaxi Mas which I would highly recommend but is a 20mins drive around the coast to a village Pirgos.
We did a sailing trip which initially was a group one but a loud young group joined and we decided spontaneously to book one for just us. Would also recommend this as it was great although the "hot springs" you swim in weren't so hot at this time of the year, Early march.
Didn't get the chance to visit a vineyard which I would try and do given another chance. Santorini exists due to a volcano so its very windy and all the vines actually grow on the ground and they train them to grow in a circular fashion which is pretty cool.
Panos was super helpful and very generous and kind host who I would highly recommend and the spot was perfect in Oia.