We are looking to take four kids bikes away with us for the summer this year - seeing what the options are for carrying them with the full Caravelle. The obvious choice seems to be adding a tow bar and tow-bar mounted bike carrier. If I put tow bar into google, places like Halfords and specialist centers come back at £350-£550 fitted (!) then it's another £200-£300 for a four bike carrier. So that adds up to £550-£750 to carry the bikes - seems like a lot - is there something cheaper I am missing? A caveat is that SWMBO needs to be able to manage the loading and unloading pretty easily on her own. Suggestions welcome!