b15261cc__How_to_identify_UK_amphibians__What_did_you_see_
[Where did you see it?] In bodies of water such as ponds during spring and early summer. Amongst leaf debris and under logs or stones close to water during late summer land stage. Hibernating during under logs, stones and leaf litter. [I could be a...] Smooth newt (Lissotriton vulgaris) [What did you see?] 
About 10 cm long head to tail. Smooth olive green to brown skin covered in black spots. Yellow to orange belly with small black spots, with pale spotted throat. A large wavy back crest on the male when breeding.
BBC Nature - How to identify UK amphibians
What did you see?