Recommended activities for viewing azaleas in Boston include: from mid-April to early May at the Arnold Arboretum of Harvard University, where visitors can admire a wide variety of vividly colored azaleas alongside a diverse range of plant species; from mid-April to mid-May, you can visit Boston Public Garden, the oldest public garden in the United States, where the blooming azaleas complement the garden’s scenery, creating a rich cultural atmosphere; from late April to late May along the Charles River walkway, where, amidst the enchanting early spring scenery, visitors can not only admire the blossoms but also gaze upon the Boston skyline while enjoying well-equipped riverside facilities; and from early May to early June at the Tower Hill Botanic Garden, which spans 171 acres and transforms into a sea of blooming azaleas, offering a variety of on-site activities that provide visitors with a rewarding experience.