Good news! The Bahamas is changing their entry requirements. Beginning May 1, 2021, if you are fully vaccinated, you do not need to provide a negative COVID test result. 
From their travel website, COVID-19 Status - The Bahamas.
Is a COVID-19 RT-PCR Negative (Swab) Test required to enter The Bahamas?

From their travel website, COVID-19 Status - The Bahamas.
Is a COVID-19 RT-PCR Negative (Swab) Test required to enter The Bahamas?
- COVID-19 RT-PCR testing is required for all unvaccinated persons travelling to The Bahamas, as well as unvaccinated persons travelling inter-island from Nassau & Paradise Island, Grand Bahama Island, Abaco, Eleuthera or Harbour Island.
- Unvaccinated persons must obtain a negative COVID-19 RT-PCR (swab) test taken no more than five (5) days prior to the date of arrival. The name and address of the lab where the test was performed must be clearly displayed on the test result.
- The day the test is taken is considered Day 0; for example, if a test was taken on Monday, travel must be completed by Saturday in order for the test to be valid for entry.
- Upon arrival, any person presenting a test older than five (5) days will not be allowed entry into The Bahamas.
- Children age ten (10) and under, as well as pilots and crew of commercial airlines who remain overnight in The Bahamas, are exempt from obtaining the RT-PCR test.
- All travellers eighteen (18) years of age and older,are required to complete an individual Bahamas Travel Health Visa. Those persons seventeen (17) years and younger are to add a profile within the account of the parent or guardian.
- Effective, May 1, 2021, fully vaccinated travellers will be exempt from COVID-19 testing requirements.