Gyms and activities
Keep training and stay active. Big chains, women's studios, functional boxes, padel and open matches on Playtomic, and where to run outdoors.
GymNation
My personal favorite for the range of equipment and facilities. It is spread across most of Riyadh, the machine selection and quality are very high, and the pricing is generally reasonable.
PureGym
Another strong option with a single-day entry pass. The equipment and facilities are excellent, though some branches get crowded at peak times.
Fitness Time
It may be the biggest gym chain in the Gulf, so there is almost always a branch near you. Men's and women's branches are separate, with the usual machines, weights, and classes.
CrossFit gyms
There is a big community of CrossFit fans, and you will always find a gym near you. Interval Plus, Lionizer and Arena are some of them, and there are plenty more. The city is full of them, so find one close to you and contact them to ask how daily entry works.
Padel and tennis
Padel is one of the most popular sports in Riyadh right now, and it is the easiest way to meet new friends. Use the Playtomic app, join an open match at your level, and play with locals.
Running and cycling communities
Riyadh has a number of running communities, including We Run, R7 and RUR, among others. The city is full of routes you can run, from Wadi Hanifah to Princess Nourah University, plus plenty of trails and public parks.