We spent a happy hour or so wandering around these relatively small but attractive gardens. The charge of $7 seemed slightly high for the size of the garden but did not grudge this as assume it goes to help with the upkeep of the gardens. There is also a small gift shop and a few plants for sale.
They have a slightly Elizabethan feel to them as there is a parterre area, statues, fountains etc (though I doubt the first Queen Elizabeth would have recognised all the flowers). Very pleasant to stroll around the several linked areas and enjoy the planting.
When we visited in early October there was plenty to see although obviously camellias and roses were not at their best. The end of the garden has a view over the water though this does not seem to have been made the most of – perhaps a more enclosed feel was considered more Elizabethan.