LYNDON — Powers Park is the town’s best-kept secret. Sarah Jewell, President of the non-profit Village Improvement Society that runs the town-owned park, said the recreation facility has been underutilized because not enough people know it exists. Now, VIS wants to get the secret out. The volunteer organization is raising funds for a major renovation project to grow the park and attract more users. As a first step, they want to build a bigger, ADA-accessible playground to better serve the hundreds of children who use the park each summer. VIS is in the process of applying for a $40,000 grant through the Vermont Community Development Program to pay for pre-engineering work such as groundwater, wetlands and archaeological studies.