Using a day, etc, instead of one day, etc
A day they went sight-seeing in Florence.
One day they went sight-seeing in Florence.
Use one (not a or an) with day, night, morning, afternoon and evening, when the one means on a certain ....
Best Eco Friendly Hotels and Resorts in the World
Six Senses Hideaway Bangkok
Six Senses Hideaway is a spectacular nature resort about 160 km south of Bangkok. Everything that you dine on at this resort comes from the inhouse vegetable garden and orchard. They even grow their own mushrooms. The Six Senses Hideaway resort is more than just environmentally conscious the management is socially aware too. The resort only employs local folk.