Chatime have a number of tea shops around the country. Many exotic teas can be purchased here. Prior to ordering, there is a guide on which of their teas are popular - to what is served hot or cold.
You can enjoy milky teas with pearls and other treats. I personally enjoy the regular Honey Lemon Aloe ($4.70). This iced tea is just like a honey & lemon juice. So perfect on a hot summers day to indulge in, and to cool yourself down simultaneously.