As an AI language model, I don't have access to real-time information to verify across multiple independent sources. However, here is a summary about Boulder Beach State Park based on the available information:

Boulder Beach State Park is a lakeside park located in Vermont, known for its scenic beauty and family-friendly atmosphere. The park is situated on the shores of Lake Groton, a popular destination for swimming, boating, and fishing.

Some good reasons to visit the park include its lush greenery, picturesque views, and recreational activities. Visitors can enjoy hiking, camping, kayaking, and picnicking while taking in the serene surroundings. The park also features a sandy beach, a playground, and a nature center.

One of the main attractions at Boulder Beach State Park is the Boulder Trail, a 1.2-mile loop that takes hikers through a dense forest and past massive boulders that date back thousands of years. The trail offers stunning views of the lake and surrounding mountains.

Interesting facts about the area include that Lake Groton was formed over 10,000 years ago during the last ice age, and that the park was established in the 1930s as part of a larger effort to conserve natural resources and provide recreation opportunities for the public.

The best time of year to visit Boulder Beach State Park is during the summer months, when the weather is warm and sunny and the lake is ideal for swimming and boating. However, the park is open year-round and offers opportunities for winter sports such as ice fishing and cross-country skiing.