Charity Urges Public to Keep Distance from Thames Seals for Mutual Safety

Wildlife advocates are warning that getting too close to the seals that have recently taken up residence along the River Thames could pose risks for both the animals and people, prompting calls for clearer public guidance.

Over the past year, the iconic marine mammals have been spotted in various stretches of the river, drawing curious onlookers and photographers eager to capture the unusual sight. While the return of the seals is celebrated as a sign of improving river health, experts stress that human interaction can cause stress to the animals and increase the chance of disease transmission.

The charity, which works to protect marine wildlife, notes that close approaches can disrupt the seals' natural behaviours, such as feeding and resting, and may lead to injuries if startled individuals attempt to intervene. Likewise, members of the public risk bites, scratches or exposure to pathogens carried by the seals, especially in crowded urban settings.

Authorities have issued general advice to maintain a safe distance—typically at least 20 metres—from any wildlife, but the charity says that signage and public education campaigns are needed to reinforce these guidelines along popular riverbanks and walkways. They also recommend that any sightings be reported to local wildlife officers, who can monitor the seals’ health and movements.

As the Thames continues to support a growing diversity of species, officials and conservation groups are exploring ways to balance public interest with animal welfare. Potential measures include installing informative boards, increasing patrols during peak visitation times, and launching social‑media outreach to remind visitors of the importance of giving the seals space. By fostering respectful coexistence, the city hopes to safeguard both its human residents and the returning marine wildlife.