Palk Bay
In the southern regions close to Dhanushkodi, wind seas dominate. The north-eastern region of Palk Bay is exposed to the Bay of Bengal through the shallow Palk Strait allowing swells to enter. To the south, Adam's Bridge separates Palk Bay from the Gulf of Mannar. Despite being a very shallow channel, wave effects are transmitted to a small extent through the Adam's Bridge passage. It is interesting to notice that, despite the visible block along the Adam's Bridge, the passage of wind wave and ocean current (to a very small extent) from the Gulf of Mannar to the bay is evident. Meanwhile, even with a wider and broader opening along the north-eastern borders of the bay, facing the Bay of Bengal, the wind wave and ocean current fluxes are less significant here.
Ramayana and Palk Bay
Palk Bay is associated with an ancient Sanskrit epic Ramayana popular over the Indian Subcontinent, which follows Prince Rama's quest to rescue his beloved wife Sita from the clutches of Ravana with the help of an army of Vaanaras (monkeys). It is traditionally attributed to the authorship of the sage Valmiki and dated to around 500 BCE to 100 BCE. The epic describes how Prince Rama and his followers managed to cross the Palk Bay to reach Lanka (Sri Lanka) to save Sita.