<p>
</p>
<p>They are not open 24/7. Hours are here:</p>
<p>[General</a> Information - Facility Hours of Operations :: MIT DEPARTMENT OF ATHLETICS, PHYSICAL EDUCATION & RECREATION](<a href=“http://mitrecsports.com/general-information/hours.aspx]General”>http://mitrecsports.com/general-information/hours.aspx)</p>
<p>As others have mentioned, some of the individual student houses also have fitness rooms that are open anytime.</p>