Both taking baths and showers while on something is wonderful. Weed and nitrous goes best in the shower, hearing the wawawaahahaooiuo-sounds while standing under porling water makes me feel like being under a waterfall. But the absolutely best bathing experience have been with Subutex and Rohypnol in a lake not far from me. You feel like you've entered a new state of materia, something between water and air, complelety different density. Not to mention your senses are kinda dulled so you only float around on your back with a happy smile when the sun shine on your face. Worry nothing about feeling the cold water. Around 20+C, but I'm used to it.
Yeah, swimming on opiates or benso is one of the cheapest, funniest and most memorial things to do when short on cash and hot as hell.
Finally, the summer have hit Sweden!