RISHU

 https://www.youtube.com/@RISHUENTERTAINMENT/videos

Kanwa

 https://www.google.com/search?q=Kanwa

Sapthagiri

 The seven peaks are called 

1. Vrushabhadri – Hill named after an Asura Vrushabha who penanced on Lord Srinivasa
2. Anjanadri – Hill of Lord Hanuman. it is said Hanuman's mother Anjanadevi did penance (tappassu) for 12 years.
3. Neeladri – Hill of Neela Devi – It is believed that hair offered by the devotees is accepted by Neela Devi. It is because of boon granted by Lord Venkateswara to Neela Devi.
4. Garudadri or Garudachalam – Hill of Garuda, the vahana of Lord Vishnu
5. Seshadri or Seshachalam – Hill of Sesha, the dasa of Lord Vishnu
6. Naraynadri– Hill of Narada Muni
7. Venkatadri – Hill of Lord Venkateswara

The seven hills, also called Saptagiri, represent the Saptarishi (seven sages). 

Seven Mouths

 Before merging into the Bay of Bengal, the Godavari has seven mouths in total and is considered sacred by local Hindus. As per their traditional belief, the holy waters of the Godavari are said to have been brought from the head of Lord Shiva by the Rishi Gautama, and the seven branches by which it is traditionally supposed to have reached the sea are said have been made by seven great rishis known as Sapta Rishis. Thus, they are named after these seven great rishis and are named as Tulyabhāga (Tulya or Kaśyapa), Ātreya (Atri), Gautamī (Gautama), Jamadagni (now replaced by Vṛddhagautamī i.e. Old Gautami), Bhardwāja (Bharadwaja), Kauśika (Viswamitra) and Vaśișțha (Vasishtha). So bathing in these mouths are considered an act of great religious efficacy by native Hindus. These mouths are remembered by a Sanskrit sloka as follow:

tulyātreyī bharadvāja gautamī vṛddhagautamī
kauśikīca vaśiṣṭhaaca tathā sāgaraṃ gataḥ

(Godavari becomes) Tulya, Ātreyi, Bharadvāja, Gautamī, Vṛddhagautamī,
Kauśikī and Vaśiṣṭhaa and then passes into sea.

Together they are referred as Sapta Godavari and the Godavari river before splitting is referred as Akhanda Godavari. However, there exists another eight mouth named as Vainateyam, which is not one of these traditional seven mouths and is supposed to have been created by a rishi of that name who stole a part of Vasisththa branch. Godavari was frequently referred as Ganga or Ganges by ancient Indian writings. However, the original branches of Kauśika, Bhardwaja and Jamadagni does not exist any longer and the pilgrims bathe in the sea at the spots where they are supposed to have been. The traditional Bharadwāja mouth is in Tirthālamondi (now bordering Savithri Nagar of Yanam and before a Hamlet of Guttenadivi) and the traditional Kauśika mouth is located at Rameswaram, a hamlet of Samathakurru village in Allavaram Mandal of Konaseema district. Traditional mouth of Jamadagni is not known and people instead take bath in the Vriddha Gautami branch at Kundaleswaram village in Katrenikona Mandal of Konaseema district. There is a local legend saying the Injaram and Patha (Old) Injaram (now on the other bank of Gautami river within Island Polavalam mandal of Konaseema district) were split by Godavari river. Thus the Godavari passing between these two now referred as Gautami and the old passage being referred as Vriddha Gautami. In early British records, the Injaram Paragana (district) was counted along with Muramalla village (now located on the other side of Gautami within Island Polavalam mandal) and said to have comprised 22 villages.

https://freeglobaluniversity.blogspot.com/search/label/Sea