The jayco we're temporarily staying in looks like that. I'm not crazy about it either. You can purchase a shower / tub surround kit, or wall kit for that tub. Can't remember the manufacturer of the tub, but usually all make a wall kit for each size tub. If you haven't removed it, there is usually a sticker on the tub with the manufacturer name.
John and Rebecca Dickson
Emma-7 / Little John-5 / Iva-1
Full Timing Again, Rev B
2013 Ford F-350 Lariat CC LB PSD
2015 SOB TT - With OC's Awning Poles (#8)
At least in Heaven, RVs will be perfect, and I won't have to keep fixing them.