Don’t worry – this won’t involve any kind of spelunking! On the contrary, a visit to an iodine-salt cave at Galos Caves Spa on Irving Park Road is all about healing and relaxation. Time spent in the manmade cave, which has pink crystals that emit a floral smell, is said to aid in curing everything from respiratory to rheumatic diseases. Sessions, which need to be scheduled in advance, last for 45 minutes and essentially involve you kicking back in a comfy chair. Check the Web site for a complete list of rules and suggestions for your experience at Galos, and prepare to plunk down $8 to $15 per person (except for kids under three, who are admitted for free). After all, what better way to say TGIF than by donning your shades and pampering yourself amidst some rosy-colored salt formations?