You could maybe book a taxi tour through your hotel / resort. Maybe even specify a woman driver. Though I'm not sure how expensive it would be nowadays. Another way to get out and see things is a bicycle tour, where you would be with others, led by a tour guide. Obviously that requires a certain level of fitness.
I've not been there for years, but the large botanical gardens were interesting, including the indoor topical part.. There was a zoo (not the Tiger Zoo), hot springs, temples, including one with a very long climb down and up a staircase. Others might know the names of these.
Also an elephant sanctuary.