Bar Harbor officials are exploring whether to build a new elementary school on the site of existing downtown athletic fields and facilities near the corner of Park and Main streets, and they want to find out if there is enough room for the fields and a school. On Tuesday, the Bar Harbor Town Council voted 4-3 to spend $14,000 on a feasibility study to see if physical limitations or other restrictions might prevent the construction of a school in the existing grassy area across Park Street from the local YMCA.