So im thinking about going to Cape Town South Africa in May in my persuit in stepping foot on every continent.
Is it a decent holiday or should i go somewhere else
It's pretty good. Cape Town and the surrounds if definitely more scenic that what you'll experience in Johannesburg.
Plan an itinerary of what you want to do and see.
May be a be a bit close to the Winter season so you may experience cold wet weather, but the weather here as been lagging behind more than usual, so you might be good.
go to table mountain near cape town.