Sri Mayapur Panchakrosha Parikrama

“There is Māyāpur and Śrī Pulina and in the middle flows the Ganges. O magnanimous one, you should understand that all of this is the abode of Gaurāṅga. One who walks these five krośas of the dhāma will see Māyāpur and Sri Pulina. And whoever walks these five krośas with the devotees on the Phalguna Pūrṇimā day receives the eternal treasure of love of God.
(Śrī Navadvīpa-dhāma Māhātmya, Chapter Five)

After that, every Ekādaśī My Lord went on saṅkīrtana, wandering over the sacred islands. Sometimes He wandered over the five krośas of Antardvīpa, and sometimes, according to His desire, He wandered eight krośas.
“From His house, He went first to Bārakoṇā-ghāṭa, then around Ballal-dighi, and then to  Śrīdhara’s house. From there, He would go to the edge of Antardvīpa and thus easily complete a five krośa tour. From Simuliya, He would go to the Kazi’s house. After talking to Śrīdhara, He would go to Gädigacha (Godruma) and then to Majidā (Madhyadvīpa). Crossing the Ganges at that point, He would go up to Pāradanga and Chinaḍāngā, on the bank of the Ganges. Then, crossing the Ganges again, He would return home, completing eight krośas.
“The complete parikramā is sixteen krośas, and if that is done, the Lord is pleased. This is the tour I am taking you on. There is no equal to this. Within this tour you will see the twelve forests of Vṛndāvana extending over sixteen krośas. This tour ends after nine nights and is thus called navaratra-parikramā in the scripture. One does the five krośa parikrama in one day, and the eight krośa parikramā is completed after three nights. The first night is spent in Māyāpur, the second night in Godruma, and the third night at Pulina, the opposite bank of the Ganges.”
Hearing this instruction on the method of parikramā, Jīva Mahāśaya could not contain his love.
Desiring to attain the lotus feet of Nitāi and Jahnavā, this worthless pauper describes the glories of Nadia.
(Śrī Navadvīpa-dhāma Māhātmya, Chapter Ten)

That person who once visits Māyāpur is easily freed from the bondage of māyā. One who walks throughout Māyāpur is freed from the influence of māyā and the repetition of birth.
(Śrī Navadvīpa-dhāma Māhātmya, Parikramā-khaṇḍa, Chapter Three)

“My worshipable Lord eternally resides at Māyāpur, situated on the east bank of the Ganges. Although in the eyes of common people, Viśvambhara took sannyāsa and left Navadvīpa to go elsewhere, actually My Gaurāṅga never gives up Māyāpur or Navadvīpa. The devotees can perceive His daily pastimes. You, Jīva, will also see Gaurāṅga dancing. Around Māyāpur is beautiful Antardvīpa, where Brahmā received the darśana of Gaurāṅga. O Jīva, if you want to see all this, please go on parikramā. It will be very beneficial for you.”
(Śrī Navadvīpa-dhāma Māhātmya, Parikramā-khaṇḍa, Chapter Five)

The śāstras say that one who walks around Navadvīpa attains the fruit of millions of aśvamedha yajñas at every step.
(Śrī Navadvīpa-dhāma Māhātmya, Chapter One)

Śrīla Bhaktivinoda Ṭhākura instructed Śrīla Bhaktisiddhānta Sarasvatī Ṭhākura, “Try to begin the parikramā of Śrīdhāma Navadvīpa as soon as possible. Thereby everyone in the universe can receive kṛṣṇa-bhakti.”
(Śrīla Bhaktivinoda Thakura manobhista to Sri Siddhanta Sarasvati)

One krośa equals two square miles.
(NOI 8 purport)

Information – 5 krosas ~ 10 square miles ~ 16 km approx.
Current Parikrama Path is 14 kms approximately

The parikramā begins at Śrīla Prabhupāda’s Bhajan Kutir near the ISKCON Māyāpur Gate and proceeds through several sacred sites: Śiva-ḍoba, Vṛddha Śiva Ghāṭa (Prauḍhā Māyā), Gaurāṅga Ghāṭa, Mādhāi Ghāṭa, Bārakoṇa Ghāṭa, Bharadvāja-ṭilā, Śrīla Jayadeva Gosvāmī house, Gaṅgādāsa Paṇḍita Ṭol, Ballāl-dhipi, ISKCON Rājāpur (Jagannātha Puri), Kholāvecā Śrīdhāra Aṅgan (Viśrāma-sthāna), Māyāmāri (Tālavana), and Nandana Ācārya Bhavan.

While doing the Parikramā, we actually circumambulate the main holy places of Antardvīpa—including ISKCON Māyāpur, Yogapīṭha, Śrīvāsa Aṅgan, Advaita Bhavan, Sri Gadādhara Aṅgan, Pṛthu kuṇḍa, Sri Chaitanya Math (Vrajapattana), Sree Sree Thakur Murāri Gupta’s Sree-Pat, and Chand Kazi Samadhi (Mathurā)—even though the parikramā route does not directly enter these temples. The parikramā concludes at the ISKCON Māyāpur Main Gate and typically takes 3 to 4 hours on foot.

Śrīla Bhaktisiddhānta Sarasvatī considered walking tours of the dhāmas beneficial both for advanced devotees, who could contemplate the Lord’s pastimes in the very locale where they had been performed, and for neophytes, who could rapidly progress by associating with such elevated Vaiṣṇavas in these most worshipable places within the entire creation. He pointed out that such parikramās afford participants an opportunity to engage simultaneously in all five of the principle practices of sādhana-bhakti: associating with devotees, chanting the holy names, hearing Śrīmad-Bhāgavatam, living in the dhāma, and worshiping the deity. By arranging to bring many devotees together in parikramā, Śrīla Bhaktisiddhānta Sarasvatī also created a new method of mass preaching, both to direct partakers and to local villagers, who would also hear from or receive prasāda from the Gauḍīya Maṭha devotees, or at least be impressed by the proceedings. And many others would learn of it from newspapers and by word of mouth.
(“Sri Bhaktisiddhanta Vaibhava” Volume Two by HH Bhakti Vikasa Swami, Chapter ‘Dhama-Seva’, Page 377)