Which caribbean destination combination with a 3 year old?

We are planning to visit the caribbean end of April for 10 nights, we wanted recommendation on two islands to combine, the main restriction is that we would like to have direct flights from UK, which leaves the following options: Barbados, St Lucia, Antigua, Trinidad and Tobago, Jamaica, Bahamas and Dominican republic.

This year we spent 2.5 weeks between seychelles and mauritius and we enjoyed the different personality and beaches and relaxation of seychelles compared to Mauritius where we also did many activities apart from just the beach. We normally like driving around and not staying in a resort and enjoy lush nature and beach time, although we don’t do hikes with the little one.

The first combination we were thinking is St Lucia and Barbados, we actually booked going to St Lucia twice during covid and this year when it looked like we couldnt take middle east flights to Seychelles, although we ended flying directly to seychelles from Paris. But St Lucia has always been in our mind for the amazing views of the pitons and the lush landscape and not only beaches. Safety is a concern from what i read. A lot of people have recommended us Barbados for the beaches, safery and overall great place.

Second combination, Barbados and Antigua, would miss St Lucia but looks like we would
Get more variety of amazing beaches, not sure if they are very similar, would love to hear from you.

Other possible combination would be St Kitt and Nevis and Antigua, and last one St Lucia and Tobago .

A different option would be to spend the 10 nights in Belize and mix jungle time and beach time but we feel that we would have to miss many of the exciting activities with our 3 years old with us.

I would appreciate your opinion , specially considering the little one will be with us.

Thank you!