Glad to see that many are planning their next trip to Mecca for this contest. Undoubtedly it is very holy and dream place for all Muslims. Through your post you have mentioned less days to perform Umrah in Macca and more than 30 days stay there for Hajj. You are right that Hajj requires a certain time to stay in Macca but Umrah does not require a certain time. There are many holy places here including Masjid al-Haram, Masjid Tanim, Mount Tur, Mount Arafat, Hera Cave. May Allah fulfill your dream of traveling to Makkah with your family (Ameen).