These are the fruits of the Plum-of-Martinique (Flacourtia inermis). I love to see trees that produce clusters of such round reddish fruits because they are so strikingly beautiful from afar and when viewed close-up.
Their reddish fruits are edible and taste better than the sour green ones.
The second photo shows the less conspicuous small flowers whilst the third shows the orangey new leaf flushes that are food to the Leopard Butterfly caterpillars.