I would like to ask you expirations of tourist...

According to the facts presented to us in your inquiry here and with reference to the residence law for expatriates in the country, and with regard to the validity of the visa for tourism or visit, it is for a period of thirty days subject to extension and renewal for a similar period consequently, visitors and tourists in the Emirates can request to extend visit and tourism visas and entry permits of all kinds (long or short) for a period of 30 days and only twice, regardless of the basic duration of the original visa and without the need to leave the UAE.
The fees for extending entry permits and tourist visas are 600 dirhams for each extension, and the renewal application must be submitted before the expiry of the period of the validity of the previous visa.
Violators who exceed the visa period without renewing it according to the specified rules and times will have a fine of 100 dirhams for each day of delay imposed after 10 days have passed since the entry permit or visa has expired, and the extension date is calculated from the date of the expiration of the previous entry permit.