Again, do your homework! Hairy dogs don't have jelly fish issues, you might if you pet her when she has some on her. Ammonia, meat tenderizer, urine, all of these are for jellyfish. Sting rays? Very painful, the toxin is heat sensitive, scorpions, see a vet. BUT, after 30+ years of traveling in Mexico with short haired dogs, and going everywhere, we haven't had any more serious issues than we have here.
Our 12.5 year old swims daily here in the US, but in Mexico, all 4 of us seriously swim daily, and watch my old girl get younger every year. Low impact, warm water, then, of course a nice, dry sand walk. If you aren't accustomed to having your dog in salt water, watch her skin. We rinse our off with fresh water after each swim, but they have short hair, their own towels, and are dry in a flash. Some dogs have issues with salt water in their coats, and some don't!
