vel d ▁to ▁the ▁north . ▁ ▁Low vel d ▁ ▁The ▁South ▁African ▁portion ▁of ▁the ▁coast al ▁strip ▁between ▁the ▁L imp opo ▁and ▁M p um al anga ▁D rak ens berg ▁and ▁the ▁ocean , ▁together ▁with ▁the ▁L imp opo ▁River ▁valley , ▁is ▁called ▁the ▁Low vel d . ▁ ▁These ▁low lands , ▁below ▁about ▁ ▁alt itude , ▁form ▁South ▁Africa ' s ▁northern ▁border ▁with ▁B ots w ana ▁and ▁Z imb ab we , ▁where ▁a ▁ 1 8 0 ‑ mill ion - year - old ▁failed ▁r ift ▁valley ▁cut s ▁into ▁Southern ▁Africa ' s ▁central ▁plate au ▁and ▁locally ▁ob liter ates ▁the ▁Great ▁Esc arp ment . ▁The ▁L imp opo ▁and ▁Save ▁rivers ▁run ▁from ▁the ▁central ▁African ▁high lands ▁via ▁the ▁Low vel d ▁into ▁the ▁Indian ▁Ocean ▁to ▁the ▁east . ▁The ▁L imp opo ▁Low vel d ▁extends ▁south wards , ▁east ▁of ▁the ▁D rak ens berg ▁esc arp ment ▁through ▁M p um al anga ▁Province ▁and ▁ultimately ▁into ▁eastern ▁Sw az il and . ▁This ▁southern ▁lim b ▁of ▁the ▁Low vel d ▁is ▁bounded ▁by ▁South ▁Africa ' s ▁border ▁with ▁Moz amb ique ▁to ▁the ▁east , ▁and ▁the ▁north - e astern ▁part ▁of ▁the ▁D rak ens berg ▁to ▁the ▁west . ▁This ▁region ▁is ▁generally ▁hot ter ▁and ▁less ▁intens ely ▁cultiv ated ▁than ▁the ▁High vel d . ▁ ▁The ▁Low vel d ▁used ▁to