The gym at Hotel Barcelona Golf Resort 4 Sup receives generally mixed but mostly positive feedback from guests. Described as a very good gym and well-equipped, it is appreciated for its quality despite its small size. Guests note that it is available 24-hours, providing flexible access for travelers. However, some mention that the gym lacks big equipment and sufficient air conditioning, which can be a drawback for those looking for a more comprehensive workout experience. An additional cost for use is also noted. Overall, the gym is functional and present, catering well to those who prioritize fitness during their stay.