We loved Croatia, so much so we were booked on a similar coastal tour to Sunlover last year but had to cancel because of health problems. Can't wait to revisit, we booked both times through Saga - who do make allowances for people with walking difficulties. Have you considered Malta for your holiday, we really liked the island and stayed just outside Slima overlooking the sea - just idyllic. We went in February and the weather was glorious, the locals were dressed in warm clothing, I had to buy some summer tops to see me through. People delightful, cuisine interesting mixture, lots to do, bus service is fantastic.